When 10 moles HCl reacts with Ca(OH) 2 how many moles of H_{2}*O are made?

Answers

Answer 1

The amount of Ca(OH)₂ produced = 5.2 g which is calculated in the below section.

NUMBER OF MOLES of HCl = Molarity of solution x Volume of Solution

# of moles of HCl = (0.40 mol/L ) x 350 mL

                              = (0.40 mol/L ) x 0.350 L

                              = 0.14 mol

The mass of HCl that makes 0.14 mol of HCl

Mass of HCl= # of moles x molar mass of HCl

Mass of HCl = 0.14 mol x 36.5 g/ mol

Mass of HCl = 5.11g

As per Stoichiometry , 1g of HCl reacts with 1.015 g of Ca (OH)₂

So, 5.11g of HCl can react with 5.11 x 1.015  g

                                                 = 5.1865 g or 5.2 g of Ca(OH)₂

To learn more about number of moles check the link below-

https://brainly.com/question/29367909

#SPJ4


Related Questions

How many moles are in 3. 612x1024 atoms of Carbon?


YOU MUST SHOW YOUR WORK IN ORDER TO RECEIVE CREDIT

Answers

There are approximately 6 moles in given set of atoms.

To find the number of moles in 3.612x10^24 atoms of Carbon, you will need to use Avogadro's number, which is 6.022x10^23 atoms/mol.

1. Determine the number of atoms given: 3.612x10^24 atoms of Carbon

2. Use Avogadro's number to convert atoms to moles:
(3.612x10^24 atoms) * (1 mol / 6.022x10^23 atoms)

3. Perform the calculation:
(3.612x10^24) / (6.022x10^23) = 6 moles (approximately)

So, there are approximately 6 moles in 3.612x10^24 atoms of Carbon.

To know more about Avogadro's number:

https://brainly.com/question/1513182

#SPJ11

explain how polarity affects surface tension?​

Answers

Because of their polarity, water molecules are strongly attracted to one another, which gives water a high surface tension. The molecules at the surface of the water “stick together” to form a type of 'skin' on the water, strong enough to support very light objects.

If i were to determine how many liters 26 grams of water is, what type of conversion would this be?

Answers

The type of conversion that would be required to determine how many liters 26 grams of water is would be a conversion from mass to volume. This is because grams are a unit of mass, while liters are a unit of volume. In order to make this conversion, it is necessary to know the density of water, which is approximately 1 gram per milliliter at room temperature and atmospheric pressure.

To convert 26 grams of water to liters, we need to divide the mass by the density. This gives us:

26 grams / 1 gram per milliliter = 26 milliliters
Since there are 1000 milliliters in a liter, we can further convert this to liters by dividing by 1000:
26 milliliters / 1000 = 0.026 liters

Therefore, 26 grams of water is equivalent to 0.026 liters of water.

In summary, to determine the volume of a given mass of water, we need to use the density of water as a conversion factor. This involves dividing the mass by the density to obtain the volume in milliliters, and then converting this to liters by dividing by 1000.

To know more about mass refer here

https://brainly.com/question/19694949#

#SPJ11

Someone help me please

Answers

Answer: C

Explanation: When distinguishing between opinion and fact, it's important to pick out certain words or phrases.

EX 1: Apple's are healthy, but you shouldn't eat too many of them. Fact

EX 2: I don't think you should eat that banana, they don't taste good to me. Opinion

Try to say the sentence in your head as if you were talking to another person, and try to determine your answer that way.



Write a conversation between you and your friend about a job agency and it's reliability. ​

Answers

When discussing a job agency and its reliability, a conversation between friends may touch on several aspects of the agency's services. They might consider the agency's reputation within the industry, the quality of the jobs the agency offers, and the level of support they provide to job seekers.

The agency's reputation, screening process, communication, and track record, the conversation might also touch on other factors that can affect an agency's reliability. These may include the types of industries and job roles the agency specializes in, the geographic region it serves and the fees it charges for its services.

If the agency primarily focuses on entry-level jobs or temporary positions, it may not be the best fit for job seekers looking for long-term career growth. If the agency only operates in a specific region or industry, it may not be able to offer the same level of job opportunities as larger agencies with a broader reach.

To learn more about agency follow the link:

https://brainly.com/question/15129864

#SPJ4

Translate the following balanced chemical equation into words.

Ba3N2(aq) + 6H2O(l) → 3Ba(OH)2(s) + 2NH3(g)

A. Barium nitride reacts with water to yield barium hydroxide and nitrogen trihydride.

B. Barium nitrogen reacts with water to yield barium hydroxide and nitrogen hydrogen.

C. Barium nitrate reacts with water to yield barium oxide and nitrogen hydride.

D. Boron nitride reacts with water to yield boron hydroxide and nitrogen trihydride

Answers

Translating the given balanced chemical equation into words : B)Barium nitride reacts with water to yield barium hydroxide and nitrogen hydrogen.

What is Barium nitride ?

Barium nitride (Ba₃N₂) is an ionic compound composed of three barium cations (Ba²⁺) and two nitride anions (N³⁻). It is a gray or black crystalline solid that is highly reactive and is used in the production of other chemicals, such as barium azide (Ba(N₃)₂) and barium cyanide (Ba(CN)₂).

Barium nitride can also be used as a reducing agent in the synthesis of metals and alloys. When it reacts with water, it produces barium hydroxide (Ba(OH)₂) and ammonia gas (NH₃).

To know more about Barium, refer

https://brainly.com/question/29344018

#SPJ1

Polonium crystallizes in the simple cubic lattice. What is the coordination number for po?.

Answers

Polonium is a rare and radioactive element that belongs to the group of chalcogens. The coordination number of polonium in a simple cubic lattice is 8.

It is known to crystallize in the simple cubic lattice structure, which is one of the three basic types of crystal lattice structures. In this structure, each polonium atom is located at the corner of a cube, sharing its electrons equally with its neighboring atoms.

The coordination number of an atom in a crystal lattice is the number of nearest neighbor atoms to which it is bonded. In the case of polonium, since each atom is located at the corner of a cube, it is in contact with eight other atoms, which are located at the corners of the adjacent cubes.

The knowledge of the crystal structure and coordination number of polonium is important for understanding its physical and chemical properties, and can also have implications in the fields of materials science, nuclear physics, and medical applications.

To know more about Polonium refer to-

https://brainly.com/question/555482

#SPJ11

How much more acidic is acid rain water with a ph of 2 than unpolluted rainwater with a ph of 6? use your knowledge of ph (not the information provided in this article) and show your work

Answers

Acid rain water with a pH of 2 is 10,000 times more acidic than unpolluted rainwater with a pH of 6.

The pH scale is logarithmic, meaning that each change in pH by one unit represents a tenfold change in acidity. Therefore, the difference in pH between acid rain (pH 2) and unpolluted rainwater (pH 6) is four units. To calculate the difference in acidity, we take the antilogarithm of four, which is 10,000. This means that acid rain is 10,000 times more acidic than unpolluted rainwater.

Mathematically, this can be shown as:

[H⁺] in acid rain = 10⁻² mol/L[H⁺] in unpolluted rainwater = 10⁻⁶ mol/L

[H⁺] in acid rain / [H⁺] in unpolluted rainwater

= 10⁻² / 10⁻⁶ = 10⁴

Therefore, acid rain is 10,000 times more acidic than unpolluted rainwater.

To learn more about Acid rain water, here

https://brainly.com/question/22143130
#SPJ4

You chop out a 500 g sample of ice out of the red river when it –40°c outside, then you

bring the ice sample indoors where it melts and heats up to 25°c. assuming that red

river ice is composed of pure water, what is the total energy is absorbed by the ice

sample?

water data
density of water 1.00 g/ml
heat capacity of ice: 2.09 j g–1 k–1
heat capacity of liquid water: 4.18 j g–1 k–1
heat capacity of water vapour: 2.01 j g–1 k–1
enthalpy of fusion: 6.02 kj mol–1
enthalpy of vapourization: 40.7 kj mol–1
melting point (1 bar): 273 k
boiling point (1 bar): 373 k

Answers

The total energy absorbed by a 500 g sample of red river ice when it is brought indoors and melted from -40°C to 25°C is 218,250 joules. This includes the energy required to raise the temperature of the ice, melt the ice, and raise the temperature of the resulting liquid water.

To calculate the total energy absorbed by the ice sample, we need to consider the different processes involved in the transition from ice at -40°C to liquid water at 25°C.

First, we need to calculate the energy required to raise the temperature of the ice from -40°C to 0°C:

Q1 = m × cice × ΔT1

Q1 = 500 g × 2.09 J/gK × (0°C - (-40°C))

Q1 = 41800 J

Next, we need to calculate the energy required to melt the ice at 0°C:

Q2 = m × ΔHfusion

Q2 = 500 g × 6.02 kJ/mol ÷ 18.02 g/mol

Q2 = 166 kJ

Then, we need to calculate the energy required to raise the temperature of the water from 0°C to 25°C:

Q3 = m × cwater × ΔT2

Q3 = 500 g × 4.18 J/gK × (25°C - 0°C)

Q3 = 10450 J

Finally, we add up the three energy values to get the total energy absorbed by the ice sample:

Qtotal = Q1 + Q2 + Q3

Qtotal = 41800 J + 166000 J + 10450 J

Qtotal = 218250 J

Therefore, the total energy absorbed by the ice sample is 218250 joules (J).

To know more about the total energy refer here :

https://brainly.com/question/3551742#

#SPJ11

A man heats a balloon in the oven. If the balloon initially has a pressure of 860. 0 torr and


a temperature of 20. 0 °C, what will the temperature (in Kelvin) of the balloon be after he


increases the pressure to 3. 00 atm? (Hint: Convert to atmospheres). Do not include


units in your answer.

Answers

The temperature of the balloon after increasing the pressure to 3.00 atm is 608 K.

First, we need to convert the initial pressure from torr to atm, which is 860.0 torr/760 torr/atm = 1.13 atm.

Using the combined gas law, we can solve for the new temperature:

(P₁x V₁)/T₁ = (P₂x V₂)/T₂

Where P₁ = 1.13 atm, V₁ is constant, T₁ = 20.0 + 273.15 K (convert from Celsius to Kelvin), P₂ = 3.00 atm, and we want to solve for T₂.

Substituting the values and solving for T₂:

T₂ = (P₂ x V₁ x T₁)/(P₁ x V₂) = (3.00 atm x V1 x 293.15 K)/(1.13 atm x V₂)

Since V₁ and V₂ are equal (since it is the same balloon), we can simplify to:

T₂ = (3.00 atm x 293.15 K)/1.13 atm = 608 K

Therefore, the temperature of the balloon after increasing the pressure to 3.00 atm is 608 K.

To learn more about temperature, here

https://brainly.com/question/11464844

#SPJ4

Use the VSEPR Theory to predict the molecular geometry of the following molecules:


(Remember, you may need to draw the lewis structure before making a prediction. )




HI




CBr4




CH2Cl2




SF2




PCl3

Answers

To predict the molecular geometry of these molecules using the VSEPR theory, we first need to draw the Lewis structure for each molecule:

1. HI

Lewis structure: H-I (single bond)

The central atom (Iodine) has 7 valence electrons, and each hydrogen atom contributes 1 valence electron. Therefore, the total valence electrons in the molecule is 9.

Steric number = number of lone pairs of electrons + number of atoms bonded to central atom = 0 + 1 = 1

Molecular geometry: linear

2. CBr4

Lewis structure:

:Br-C-Br:

: | :

:Br-C-Br:

The central atom (Carbon) has 4 valence electrons, and each Bromine atom contributes 7 valence electrons. Therefore, the total valence electrons in the molecule is 32.

Steric number = number of lone pairs of electrons + number of atoms bonded to central atom = 0 + 4 = 4

Molecular geometry: tetrahedral

3. CH2Cl2

Lewis structure:

H : Cl

| :

H-C-H

| :

Cl:

The central atom (Carbon) has 4 valence electrons, each hydrogen atom contributes 1 valence electron, and each chlorine atom contributes 7 valence electrons. Therefore, the total valence electrons in the molecule is 20.

Steric number = number of lone pairs of electrons + number of atoms bonded to central atom = 2 + 4 = 6

Molecular geometry: octahedral

However, the two lone pairs of electrons on the central atom will repel the bonded pairs more than the bonded pairs will repel each other. Therefore, the shape will be bent or V-shaped.

4. SF2

Lewis structure:

F : S : F

\ /

F

The central atom (Sulfur) has 6 valence electrons, each Fluorine atom contributes 7 valence electrons. Therefore, the total valence electrons in the molecule is 20.

Steric number = number of lone pairs of electrons + number of atoms bonded to central atom = 1 + 2 = 3

Molecular geometry: trigonal planar

However, the lone pair of electrons on the central atom will repel the bonded pairs more than the bonded pairs will repel each other. Therefore, the shape will be bent or V-shaped.

5. PCl3

Lewis structure:

Cl : P : Cl

:

Cl

The central atom (Phosphorus) has 5 valence electrons, each Chlorine atom contributes 7 valence electrons. Therefore, the total valence electrons in the molecule is 26.

Steric number = number of lone pairs of electrons + number of atoms bonded to central atom = 0 + 3 = 3

Molecular geometry: trigonal planar

To know more about VSEPR theory refer to-

https://brainly.com/question/14992767

#SPJ11

You have twisted your ankle and need to apply a cold pack. You squeeze the bag and as the chemical reaction occurs, you can feel that the pack is getting colder. How would you classify this type of reaction? Using what you understand from our lessons in unit 4, explain how the heat transfers between the cold pack and your skin? Also, describe how the law of conservation of energy applies to this system

Answers

This type of reaction is classified as an endothermic reaction, as it absorbs energy in the form of heat from its surroundings.

The heat transfers between the cold pack and your skin by conduction, which is the transfer of heat energy from a warmer object to a cooler one. The law of conservation of energy states that energy cannot be created or destroyed, only transferred from one form to another.

In this case, the heat from your skin is transferred to the cold pack, and the cold pack absorbs the heat and converts it into a different form of energy, usually in the form of radiation or vibration.

This is the same process that occurs with an ice pack, where the heat in the skin is absorbed by the ice, and the ice radiates the heat away in the form of cold air.

Know more about Endothermic reaction here

https://brainly.com/question/23184814#

#SPJ11

What physical property and reaction type are used by extraction as useful techniques to separate and purify mixtures of compounds?.

Answers

Extraction is a useful technique for separating and purifying mixtures of compounds based on differences in their physical properties and reaction types.

The physical property used in extraction is the solubility of a compound in a particular solvent. If a compound is more soluble in one solvent than another, it can be selectively extracted and separated from the mixture.

For example, if a mixture contains both water-soluble and oil-soluble compounds, the mixture can be extracted with water to separate the water-soluble compounds, and then extracted with an organic solvent to separate the oil-soluble compounds.

The reaction type used in extraction is often acid-base chemistry. If a mixture contains both acidic and basic compounds, they can be selectively extracted by adjusting the pH of the solvent.

For example, if a mixture contains both an acidic carboxylic acid and a basic amine, the mixture can be extracted with a basic solvent to selectively extract the amine, and then extracted with an acidic solvent to selectively extract the carboxylic acid.

Overall, extraction is a powerful technique for separating and purifying mixtures of compounds, and its effectiveness depends on the physical properties and reaction types of the compounds in the mixture.

To know more about Extraction refer to-

https://brainly.com/question/16848369

#SPJ11

What set of coefficients will balance the chemical equation below:


___FeCl3 (aq) + ___AgNO3 (aq) ___Fe(NO3)3 (aq) + ___AgCl (aq)


A. 1,2,2,1


B. 1,1,1,1


C. 1,3,1,3


D. 1,1,1,3

Answers

The set of coefficients that will balance the chemical equation is: C)1, 3, 1, 3

What is a reaction?

In chemistry, reaction is a process that leads to the changing of one or more substances into one or more different substances.

Coefficients in front of each reactant and product indicate the relative number of moles of each substance that participate in the reaction.

Looking at the equation, we can see that there are three chloride ions on the left-hand side and three chloride ions on right-hand side. Therefore,  coefficient of AgCl should be 3. There are three nitrate ions on the right-hand side, so the coefficient of Fe(NO₃)₃ should be 1.

The balanced chemical equation is: FeCl₃ (aq) + 3 AgNO₃ (aq) → Fe(NO₃)₃ (aq) + 3 AgCl (s)

Therefore, the set of coefficients that will balance the chemical equation is: C)1, 3, 1, 3

To know more about reaction, refer

https://brainly.com/question/25769000

#SPJ1

An experiment you are conducting asks you to heat up a piece of steel (0. 452 J/(g∘C)) from 20oC to 100oC and then place it into 32 grams of liquid ethanol (2. 45 J/(g∘C)) at 30oC. What is the final temperature of your ethanol and steel?

Answers

The final temperature of the steel and ethanol mixture is 30.46oC.

To answer this question, we can use the formula Q = m x c x ΔT, where Q represents the heat transferred, m represents the mass of the substance, c represents its specific heat capacity, and ΔT represents the change in temperature.

First, we need to calculate the amount of heat required to raise the temperature of the steel from 20oC to 100oC.

Q1 = m x c x ΔT
Q1 = 1g x 0.452 J/(g∘C) x (100oC - 20oC)
Q1 = 36.16 J

Next, we need to calculate the amount of heat required to raise the temperature of the ethanol from 30oC to the final temperature, which we will call T.

Q2 = m x c x ΔT
Q2 = 32g x 2.45 J/(g∘C) x (T - 30oC)
Q2 = 78.4(T - 30)

Now, we can set Q1 equal to Q2 since the heat transferred from the steel to the ethanol is equal to the heat gained by the ethanol.

Q1 = Q2
36.16 = 78.4(T - 30)
T - 30 = 0.46
T = 30.46oC

Therefore, the final temperature of the steel and ethanol mixture is 30.46oC.

To know more about temperature, visit;

https://brainly.com/question/11464844#

#SPJ11

which environmental problem would impact most minnesotans equally?
a. toxicity of agriculture, pesticides.
b. Disruption of wildlife from open pit mine’s.
c. Water pollution from fracking.
d. Climate change.

Answers

The environmental problem that would impact most Minnesotans equally is Climate change. The correct option is d.

Climate change is a global issue that affects all regions and populations, regardless of location or industry. Its impacts, such as extreme weather events, changes in precipitation patterns, and rising temperatures, can have far-reaching consequences on the environment, human health, and the economy. In Minnesota, climate change can affect agriculture, forestry, tourism, and other industries, and also impact public health through increased heat waves and worsening air quality. Therefore, addressing climate change requires a collective effort from all communities and sectors . Hence, option d is the correct answer.

To know more about Climate change, here

brainly.com/question/28779953

#SPJ1

The Si unit of hurtz equals one wave passing a fixed point in one _____

Answers

The Si unit of Hertz (Hz) represents the frequency of a wave, which is defined as the number of complete cycles of a wave passing a fixed point per second.

In other words, one Hertz equals one wave passing a fixed point in one second. This unit is commonly used to measure the frequency of various types of waves, including sound waves, electromagnetic waves, and radio waves.

For example, if a sound wave has a frequency of 440 Hz, it means that the sound wave completes 440 cycles of compression and rarefaction (the peaks and troughs of the wave) per second. Similarly, if a radio wave has a frequency of 100 MHz (megahertz), it means that the wave completes 100 million cycles per second.

The Hertz unit was named after Heinrich Hertz, a German physicist who was the first to demonstrate the existence of electromagnetic waves. Hertz's experiments in the late 19th century paved the way for the development of modern radio, television, and other forms of wireless communication.

In summary, the Si unit of Hertz equals one wave passing a fixed point in one second, and it is a fundamental unit of measurement for the frequency of various types of waves.

To know more about frequency, visit:

https://brainly.com/question/5102661#

#SPJ11

Why is there no relation between reactant and product molecules in redox reactions

Answers

Answer:

Explanation:

In redox (reduction-oxidation) reactions, the transfer of electrons between species occurs. As a result, the number of atoms and molecules of the reactants and products can be different. This is because, during the reaction, electrons can be gained or lost by the atoms, leading to the formation of new species with different numbers of atoms.

For example, consider the reaction between copper and silver ions in a solution:

Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)

In this reaction, one copper atom reacts with two silver ions to form one copper ion and two silver atoms. The number of reactant molecules does not necessarily match the number of product molecules.

Therefore, in redox reactions, the relationship between reactant and product molecules is not necessarily direct, and the number of atoms or molecules in the reactants and products can be different due to electron transfer.

To read more about redox reaction,

https://brainly.com/question/31589678

Calculate the ph of a formic acid solution that contains 1.44% formic acid by mass. (assume a density of 1.01 g/ml for the solution.)

Answers

The pH of the solution is 1.77 which, contains 1.44% formic acid by mass.

The first step is to determine the molarity of the solution, which can be done using the percent composition by mass and the density of the solution;

mass of formic acid = 1.44% × 100 g = 1.44 g

volume of solution = 1.44 g ÷ 1.01 g/mL

= 1.43 mL

= 0.00143 L

molarity of formic acid=moles of formic acid ÷ volume of solution

moles of formic acid = mass ÷ molar mass = 1.44 g ÷ 46.03 g/mol

= 0.0313 mol

molarity of formic acid = 0.0313 mol ÷ 0.00143 L

= 21.9 M

Next, we can use the expression for the acid dissociation constant of formic acid to determine the pH;

Ka = [H⁺][HCOO⁻] / [HCOOH]

Let x be the concentration of [H⁺] and [HCOO⁻] at equilibrium. Then, the concentration of [HCOOH] at equilibrium is 0.047 - x.

Substituting these expressions into the Ka expression and solving for x, we get;

6.2 × 10⁻⁴ = x² / (0.047 - x)

Solving for x using quadratic formula, we get;

x = 0.017 M

Therefore, the pH of the solution is;

pH = -log[H⁺] = -log(0.017)

= 1.77

To know more about formic acid here

https://brainly.com/question/13016575

#SPJ4

Item 2 Explain how crustal deformation builds landforms. When sediments are laid down over vast areas the forces involved create rock over a very long period of time. When two tectonic plates start to push into each other they can rise up and build mountains, or sink under and create deep valleys. When wind and rain slowly wear away rock, they leave behind new looking land forms. When two tectonic plates slide away from each other the inner liquid layer of the mantle comes to the surface as lava and creates new islands

Answers

When the force of tectonic plates pushing against each other become too strong the plates break and create faults.

What is tectonic plates?

Tectonic plates are large, rigid pieces of the Earth's lithosphere that move relative to one another. The lithosphere is the rocky outer layer of the Earth that includes the crust and part of the upper mantle. Tectonic plates can vary in size from a few hundred to thousands of kilometers in diameter. They interact at their boundaries and are responsible for the formation and destruction of the Earth's surface features, such as mountains and ocean trenches. Movement of the plates helps explain the occurrence of earthquakes, volcanic eruptions, mountain building, and oceanic trench formation. In plate tectonics, the lithosphere is divided into seven major plates and several minor ones. The major plates include the African, Antarctic, Eurasian, Indo-Australian, North American, Pacific, and South American plates. The plates move at a rate of several centimeters per year in response to convection currents in the mantle.

When the force of tectonic plates pushing against each other become too strong the plates break and create faults. This can cause folding of the crust to create mountains or reverse faults can create deep valleys. Volcanoes are also involved in the formation of landforms as they create mountains, ridges and canals. Earthquakes can also cause landforms to form in areas that were previously flat.

To learn more about tectonic plates

https://brainly.com/question/2325633

#SPJ4

Cayden wanted to make some curd. He took some warm milk and added a spoonful of old curd into it. He then kept the milk in his fridge. After 8 hours he took it out. Will he succeed in making curd? Justify your answer. Is there anything you would have done differently or would you follow the same procedure?

Answers

Yes, Cayden will succeed in making curd. We would follow the same procedure to make the curd.

When a spoonful of old curd is added to warm milk, the bacteria present in the curd starts to multiply in the milk. These bacteria convert the lactose (milk sugar) present in the milk into lactic acid, which causes the milk to thicken and form curd. The process of curd formation is called curdling.

When the curdled milk is kept in a fridge, the low temperature inhibits the growth of bacteria, and the curd sets. This is because the lactic acid formed by bacteria during the curdling process makes the milk protein molecules coagulate and form a solid mass.

Therefore, Cayden's procedure of adding a spoonful of old curd to warm milk and keeping it in the fridge is an effective way to make curd.

To know more about bacteria, refer here:

https://brainly.com/question/2501232#

#SPJ11

.



calculate the osmolarity of the following solutions, are these solutions hypotonic solution, isotonic solution, or hypertonic solution?



(a) osmolarity of 0.069 m na2co3 is ___, this solution is a ___ solution (hypotonic


hypertonic, or isotonic)



(b) osmolarity of 0.62 m ai(no3)3 is ___, this solution is a ___ solution


this solution is a



(c) osmolarity of a 0.30 m glucose (c6h1206) aqueous solution is ___, this solution is a ___ solution

Answers

(a) Osmolarity of 0.069 m na2co3 is 0.138 m, (b) osmolarity of 0.62 m ai(no3)3 is 1.86 m, (c) osmolarity of a 0.30 m glucose (c6h1206) aqueous solution is 0.30 m.

What is Osmolarity ?

Osmolarity is a measure of the concentration of solutes in a solution. It is expressed as the number of osmoles (molecules or particles) of solutes per litre of solution. Osmolarity is an important factor in the body's ability to regulate the balance of water and electrolytes in the blood and other bodily fluids. It is also important for the absorption of nutrients from the intestines, and the maintenance of blood pressure. Osmolarity is measured using a special instrument called an osmometer.

To learn more about Osmolarity

https://brainly.com/question/14814464

#SPJ4

What volume (in litres) of 0. 200 M NaOH is required to neutralize 22. 3 mL of 0. 152 M HCl?

Answers

To solve this problem, we can use the following equation:

Moles of acid = Moles of base

where "acid" refers to the HCl and "base" refers to the NaOH.

First, let's calculate the moles of HCl:

moles of HCl = concentration of HCl × volume of HCl

            = 0.152 mol/L × 0.0223 L

            = 0.0033856 mol

Next, let's calculate the volume of NaOH required to neutralize the HCl:

moles of NaOH = moles of HCl

volume of NaOH = moles of NaOH / concentration of NaOH

We know the concentration of NaOH (0.200 M), so let's substitute in the values:

moles of NaOH = 0.0033856 mol

volume of NaOH = 0.0033856 mol / 0.200 mol/L

              = 0.016928 L

              = 16.928 mL (rounded to three decimal places)

Therefore, 16.928 mL of 0.200 M NaOH is required to neutralize 22.3 mL of 0.152 M HCl.

To know more about problem refer here

https://brainly.com/question/31611375#

#SPJ11

What is the name of this branched alkene? Please help me as fast as possible I need to study, please! ILL MARK AS BRAINIEST FOR CORRECT ANSWER PLEASE HELP ITS DUE IN 25 MINUTES

Answers

6-ethyl-8-methyl-5-propyl- non-2-ene is the name of this branched alkene. The World Union of Applied and Pure Chemistry (IUPAC).

The World Union of Applied and Pure Chemistry (commonly abbreviated to IUPAC) recommends a systematic approach for the terminology of organic compounds, which is referred to as the IUPAC classification of organic compounds.

The IUPAC naming criteria are occasionally followed by chemists, nevertheless, as some compounds have names that are incredibly long and difficult to pronounce. More banal names are given to these substances. 6-ethyl-8-methyl-5-propyl- non-2-ene is the name of this branched alkene.

To know more about IUPAC, here:

https://brainly.com/question/30086566

#SPJ1

26. Over time an open soft drink will lose carbonation (dissolved CO2


Which of these allows the CO2 to remain in solution the longest?


O Reduced air pressure


Exposure to direct sunlight


Increased air currents


O Cooler temperatures

Answers

Out of the options provided, cooler temperatures allow CO2 to remain in solution the longest.

When a soft drink is opened, CO2 molecules start to escape from the solution and accumulate in the headspace of the container. Higher temperatures increase the kinetic energy of the CO2 molecules, causing them to move faster and escape the solution more quickly. In contrast, cooler temperatures reduce the kinetic energy of the CO2 molecules, slowing down their movement and allowing them to remain in solution for a longer period of time.

Reduced air pressure, exposure to direct sunlight, and increased air currents can all further accelerate the loss of carbonation in an open soft drink. Reduced air pressure lowers the atmospheric pressure, which decreases the solubility of CO2 in the liquid. Exposure to direct sunlight increases the temperature of the drink and causes the CO2 molecules to escape more quickly. Increased air currents can also cause CO2 to escape more quickly by creating turbulence in the liquid.

Therefore, to keep a soft drink fizzy for longer, it is best to store it in a cool place and avoid exposing it to direct sunlight, reducing air pressure or increased air currents.

Know more about Kinetic Energy here:

https://brainly.com/question/26472013

#SPJ11

what menat by mechanical energy​

Answers

Answer:

Mechanical energy is the total amount of kinetic energy and potential energy of an object.

It can also be defined as the energy of an object due to either its motion or position or both.

Hope this helps!

pls like and mark as brainliest!

Answer:

Energy possessed by a machine.

G What two carbonyl compounds are needed to synthesize each of the following compounds, using a Robinson annulation? Part A A line-angle formula shows a ring with six vertices and a double bond between the second (clockwise) and the third vertices. An oxygen atom is double-bonded to the first vertex. A COCH3 group, whose first (from left to right) carbon is double-bonded to an oxygen atom, is attached to the fourth vertex

Answers

According to a given scenario in the question, A cyclic ketone, such as cyclohexanone, and an,-unsaturated carbonyl molecule, such as acrolein, are needed to perform a Robinson annulation to create

4-methylcyclohexane-1-carboxaldehyde.

A strong base, such as sodium ethoxide, is used to treat the cyclic ketone in the Robinson annulation in order to produce an enolate ion. The -carbon of the enolate and the -carbon of the unsaturated carbonyl compound subsequently create a new carbon-carbon bond as a result of the enolate ion's nucleophilic addition to the,-unsaturated carbonyl molecule. The desired product, in this case, 4-methylcyclohexane-1-carboxaldehyde, is produced by protonating the ensuing intermediate.

To know more about  cyclic ketone, here

brainly.com/question/29756072

#SPJ4

--The complete Question is, What two carbonyl compounds are required to carry out a Robinson annulation to synthesize 4-methylcyclohexane-1-carboxaldehyde? --

What are the equilibrium concentration of each species for the complex ion 0. 500M Co(NH3)6+3? Kd=2. 2 x 10-34

Answers

The equilibrium concentration of each species for the complex ion 0.500M [tex]Co(NH_3)^6+3[/tex] can be calculated using the dissociation constant (Kd) of 2.2 x 10^-34.

The dissociation reaction for the complex ion is:

[tex]Co(NH_3)^6+3[/tex]⇌ ]tex]Co_3[/tex]+ [tex]6NH_3[/tex]

The equilibrium constant expression for this reaction is:

Kd = [Co3+] [NH3]^6 / [Co(NH3)6+3]

We can assume that x moles of Co(NH3)6+3 dissociates to form x moles of Co3+ and 6x moles of NH3. Therefore, the equilibrium concentrations of the species are:

[Co(NH3)6+3] = 0.500 - x
[Co3+] = x
[NH3] = 6x

Substituting these values into the equilibrium constant expression and solving for x gives:

Kd = [x] [6x]^6 / [0.500 - x]
2.2 x 10^-34 = 46656 x^7 / (0.500 - x)

Since Kd is very small, we can assume that x is much smaller than 0.500. Therefore, we can approximate 0.500 - x as 0.500.

2.2 x 10^-34 = 46656 x^7 / 0.500
x = 2.38 x 10^-6 M

Therefore, the equilibrium concentrations of each species are:

[Co(NH3)6+3] = 0.500 - x = 0.49999762 M
[Co3+] = x = 2.38 x 10^-6 M
[NH3] = 6x = 1.43 x 10^-5 M

To know more about dissociation constant:

https://brainly.com/question/12320813

#SPJ11

Select the statement that reflects a central theme of the atomists.


a. atomists would agree that a butterfly and a caterpillar are one in the same since a caterpillar becomes a butterfly.

b. atomists would agree that epistemology provides a defensible explanation of why a butterfly differs from a caterpillar.

c. atomists would agree that during metamorphosis, a caterpillar ceases to exist and a butterfly is spontaneously created in its place.

d. atomists would agree that a butterfly and a caterpillar exist as a collection of atoms, but their atoms are organized differently

Answers

The statement that reflects a central theme of the atomists is: Atomists would agree that a butterfly and a caterpillar exist as a collection of atoms, but their atoms are organized differently.

Atomists believe that everything in the universe is composed of small, indivisible particles called atoms. They assert that the properties of objects, like a butterfly and a caterpillar, are determined by the arrangement and organization of these atoms.

While a butterfly and a caterpillar may share similar atoms, their unique characteristics are due to the differences in how these atoms are arranged within each organism.

This perspective acknowledges the transformation from a caterpillar to a butterfly as a process of reorganization of atoms, rather than the creation or destruction of matter.

To know more about Atomists click on below link:

https://brainly.com/question/5397458#

#SPJ11

Help pls! Assuming non-ideal behavior, a 2. 0 mol sample of CO₂ in a 7. 30 L container at 200. 0 K has a pressure of 4. 50 atm. If a = 3. 59 L²・atm/mol² and b = 0. 0427 L/mol for CO₂, according to the van der Waals equation what is the difference in pressure (in atm) between ideal and nonideal conditions for CO₂?

Answers

The difference in pressure between ideal and non-ideal conditions for CO₂ is 0.01 atm.

To find the difference in pressure between ideal and non-ideal conditions for CO₂ using the van der Waals equation, follow these steps:

1. First, recall the van der Waals equation: (P + a(n/V)²)(V - nb) = nRT, where P is pressure, n is the number of moles, V is volume, T is temperature, a and b are van der Waals constants, and R is the ideal gas constant (0.0821 L・atm/mol・K).

2. Given values: n = 2.0 mol, V = 7.30 L, T = 200.0 K, a = 3.59 L²・atm/mol², b = 0.0427 L/mol, and P_vdW = 4.50 atm (non-ideal pressure).

3. Calculate the ideal pressure (P_ideal) using the ideal gas law, PV = nRT:
  P_ideal = nRT/V = (2.0 mol)(0.0821 L・atm/mol・K)(200.0 K) / 7.30 L = 4.49 atm.

4. Find the difference in pressure between ideal and non-ideal conditions:
  ΔP = P_vdW - P_ideal = 4.50 atm - 4.49 atm = 0.01 atm.

The difference in pressure between ideal and non-ideal conditions for CO₂ is 0.01 atm.

To know more about van der Waals equation :

https://brainly.com/question/31585867

#SPJ11

Other Questions
Find the area and central angle of the polygons given the apothem or side length. Thank you. After reading the book "Who Is Malala Yousafzai?" What are 4-5 vocabulary terms you've learned from this book. with the switch open, the potential difference across the capacitor in figure p23.44 is 10.0 v. after the switch is closed, how long will it take for the potential difference across the capacitor to decrease to 5.0 v? I need help please!! "The Republic of the Animals which Major had foretold, when the green fields of England should be untrodden by human feet, was still believed in. " Explain how this quote is an example of situational irony True or false: it's not important for people who work for you to know the vision you have for your company. Which of the options below describe thewalls of veins?thick muscle layer & large elastic layerthin smooth muscle & small elastic layeronly one cell thick Summary writing directions: read the three passages and1. create a title for each passage related to the main idea.2. accurately summarize the text.3. your summary must describe all key ideas from the text.4. do not include opinions or personal info in your summary.5. highlight or underline key ideas in each passage over here.passage 1:how do you say "holy cow" in french? the fastest thing in france may just be the fastestground transportation in the world. the tgv (train grande vitesse: french for very highspeed) is frances national high-speed rail service. on april 3 rd , 2007, a tgv test train set arecord for the fastest wheeled train, reaching 357.2 miles per hour. in mid 2011, tgv trainsoperated at the highest speed in passenger train service in the world, regularly reaching 200miles per hour. but what you may find most shocking is that tgv trains run on electric powernot petrol. now if youll excuse me; i have a record to catch.passage 2:giddy-up, cowboys and girls! in the southwest during the early half of the 1800s, cows wereonly worth 2 or 3 dollars apiece. they roamed wild, grazed off of the open range, and wereabundant. midway through the century though, railroads were built and the nation wasconnected. people in the southwest could suddenly ship cows in freight trains to the northeast.the yankees there had a growing taste for beef and were willing to pay for it. out of the blue,the same cows that were once worth a couple of bucks were now worth between twenty andforty dollars each. the only problem was that they had to get these cows to the train station. anew profession emerged from this. it became pretty lucrative to wrangle up a drove of cattle andherd them to the nearest train town. of course it was dangerous too. cowboys were threatenedat every turn. they faced cattle rustlers, stampedes and extreme weather. but they keptpushing those steers to the train station. by the turn of the century, barbed wire killed the openrange. some may say the cowboy, too, was killed by barbed wire. maybe, but it was the trainthat birthed them.passage 3:electric trolley cars or trams were once the chief mode of public transportation in the unitedstates. though they required tracks and electric cables to run, these trolley cars were clean andcomfortable. in 1922, auto manufacturer general motors created a special unit to replaceelectric trolleys with cars, trucks, and buses. over the next decade, they lobbied for laws andregulations that made operating trams more difficult and less profitable. in 1936 general motorscreated several front companies to purchase and dismantle the trolley car system. theyreceived big investments from firestone tire, standard oil of california, phillips petroleum, andothers in the automotive industry. some people suspect that these parties wanted to replacetrolley cars with buses to make public transportation less desirable. this would then increaseautomobile sales. the decline of the tram system in north america could be blamed on manythingslabor strikes, the great depression, regulations that were unfavorable to operators. yet,perhaps the primary cause was having a group of powerful men from rival sectors of the autoindustry working together to ensure its destruction. fill it up, please. myelodysplastic syndrome caused by railroad how to get a settlement? A distributor is negotiating a supply contract for one of its item. The end-customer demand is forecasted as follows: Demand Probability 0. 4 Quantity 20,000 30,000 45,000 60,000 0. 2 0. 35 0. 05 The current parameters are as follows: Price charged by distributor to end-customer Price charged by supplier to distributor Buyback price offered by supplier Salvage value Fixed manufacturing cost Variable manufacturing cost $100/unit $70/unit $40/unit $10/unit $45/unit What is the optimal order quantity for the distributor under the buyback contract? What do we count in an obituary when marking? 840x - x2 A company's revenue for selling x (thousand) items is given by R(x) = x2 +840 Find the value of x that maximizes the revenue and find the maximum revenue. X= maximum revenue is $ 2 The earthquake led to over 87 00 deaths. do you think they could have been prevented? What effect does the third stanzas repetition (of this, this) and alliteration (battle; burden; borderlands) create? Adcb is a rectangle. ac = 16 and bd = 2x + 4, find the value of x. Complete the description of a real-world situation that might involve three linear equations in three variables.you are trying to find the ages of three people. you know the sum of all three ages, the sum of the first two ages and blank (the answer choices are twice the third or the third age squared), and the sum of the first and third ages and blank (the answer choices are twice the second or the square root of the second)* just to be clear there are two blanks and two possible answer choices for each Jaime is cutting shapes out of cardboard to make a piata. One of the shapes is shown in acoordinate gridc. (0,10)d. (3,2)e. (9,0)f. (3,-2)g (0,-10)h. (3,-2)a. (-9,0) (its the shape of a star)What is the length of side AB? Round your answer to the nearest tenth of a unit.Show your work. 0. 587. Write this value in scientific notation. 1 ml = a litresii) b ml = 1 litreiii) 1 cl = c litresiv) d cl = 1 litrev) 1 cl = e mlvi) f cl = 1 ml A gas occupies 37. 5 mL at 102. 3 kPa. At 27. 5 mL, what will the pressure be? There are 90 children in year 6 at woodland junior schoolthey are split into three classesclassnumber n class276m6p336t30each child chose football or netball or hockey.in 6m, 13 children chose hockey.the rest of the class were split equally between football and netball.in 6p, 9 children chose netballtwice as many children chose football as chose hockeyin 6t the ratio of children who chosefootball to netball to hockey was 1:2:3complete this tableclassnumber in classfootballnetballhockey627136p336t30