If 3. 00 g of CsH12 were obtained in the reaction of 5. 00 g of CHg with excess hydrogen, then
what is the percent yield of CsH12?

Answers

Answer 1

The percent yield of the compound C₅H₁₂ when 3. 00 g of C₅H₁₂ were obtained in the reaction of 5. 00 g of C₃H₄ is 4.16%.

In the actual world, chemical processes do not always happen as intended. Apart from spills and other experimental failures, there are frequently losses as a result of an incomplete reaction, unwanted side reactions, and so on. Chemists require a metric that reflects the success of a reaction. This is referred to as the percent yield.

To calculate the percent yield, first establish how much of the product should be created using stoichiometry. The theoretical yield is the greatest quantity of product that can be created from the given quantities of reactants. The amount of product created when the reaction is carried out in the laboratory is referred to as the real yield.

We have equation as,

5C₃H₄ + 8H₂ → 3C₅H₁₂

We have 3 grams of C₅H₁₂

we have 5 grams of C₃H₄

Theoretical yield = C₅H₁₂ = 5 x 12 + 12 x 1 = 72

So percent yield  = actual yield / Theoretical yield x 100

= 3/ 72 x 100

= 0.04167 x 100

= 4.16 %

So percentage yield is 4.16%.

Learn more about Percent Yield:

https://brainly.com/question/14714924

#SPJ4


Related Questions

Write a short scenario to describe the motion represented on the graph.

Answers

Sam is traveling in her accelerates along a straight road go visit her friends a nearby town. Time zero begins  leaving her house, and she up speed in order to reach the posted speed of 60 mph in 10 seconds.

Exactly why do you say accelerates?

A automobile that is traveling at a steady 20 mph around a turn is accelerating since the speed is constant. Since the speed is set at 20 mph, the automobile accelerates.

What happens when something moves more quickly?

When an object's speed direction, or both of these change, acceleration occurs. Even though it may appear in some circumstances to be virtually immediate, changes in an object's motion are always ongoing.

To know more about accelerates visit:

https://brainly.com/question/12550364

#SPJ1

The correct answer is 'This is a line graph used to describe the motion of an object. A graphic representation of velocity. Also used to represent speed.

According to the solubility curve below, which of the following statements is true
about potassium nitrate (KNO3) at 60°C?
KNO3 will completely dissolve at 60°C.
KNO3 is insoluble at 60°C.
The solubility of KNO3 is approximately 110 g/100 mL
The solubility of KNO3 is approximately 50 g/100 mL
8

Answers

We can see here that according to the solubility curve below, the statement that is true about potassium nitrate (KNO3) at 60°C is: C. The solubility of KNO3 is approximately 110 g/100 mL.

What is solubility curve?

A solubility curve is a graphical representation of the relationship between the solubility of a particular substance and temperature (or pressure, in some cases).

It is a plot of the maximum amount of solute that can be dissolved in a given solvent at a specific temperature, with the solubility usually expressed in grams of solute per 100 grams of solvent.

At 60°C, the solubility of potassium nitrate (KNO3) is relatively high, and it can dissolve in water to form a clear, colorless solution. The solubility of KNO3 in water varies with temperature, and at higher temperatures, the solubility generally increases.

The approximate solubility of KNO3 at 60°C is around 110 g/100 mL, meaning that 100 mL of water at this temperature can dissolve around 110 grams of KNO3. Therefore, KNO3 will not be completely insoluble at 60°C.

Learn more about solubility curve on https://brainly.com/question/29656907

#SPJ1

Answer:The solubility of KNO3 is approximately 110 g/100 mL

Explanation:

give one example of an element and one example of a compound explain how they are different

Answers

Answer:

Explanation:

Both elements and compounds are classified as pure substances. A pure substance is defined as a material that has a constant composition and fixed properties. Pure substances cannot be separated using physical separation techniques.

Elements are the simplest pure substances. They cannot be broken down or separated by any means, excluding nuclear fission and fusion. Most elements have been found naturally in the universe, most having been formed during the evolution of the universe, in the Big Bang. One example is iron (Fe), formed naturally during the fusion of stars.

Compounds are composed of elements in fixed atomic ratios and can be separated into component elements by chemical means. Examples include Silver bromide (AgBr), which can be separated into silver and bromine by photolytic decomposition (light); sodium chloride can be separated into sodium and chlorine by electrolytic decomposition (electricity); hydrochloric acid can be separated into chlorine upon reaction with water.

PLEASE HELP! Please answer thanks

Answers

Answer:

4m

Explanation:

wavelength is peak to peak and 4m is the closest

A cool water sample absorbed 3,135 J of
energy from hot metal. The temperature
of the 63.0 g piece of metal changed
from 382 °C to 20.0 °C. What is the
specific heat of the metal?
Cmetal = [?] °C
qH20 3,135 J
=
Romomber

Answers

Answer:0.137

Explanation:

can you guys help me do this science question

Answers

Jacinda Ardern got involved with Tonga after the eruption due to the following reasons:

To acquire more information about the volcano's current activity.To get rid of the ash plume that threatens to cover New Zealand.To provide assistance to the people of Tonga by giving them provisions.

The correct answer is: 2, 3, and 4.

What made Jacinda Ardern get involved with Tonga?

Jacinda Ardern, the Prime Minister of New Zealand, got involved with Tonga after the underwater volcanic eruption that occurred in January 2022.

There were several reasons why she got involved:

To assess the potential impact of the eruption on New Zealand and the wider region, including the risk of a tsunami or ash plume that could affect air travel and the environment.To provide assistance to the people of Tonga, including the supply of emergency provisions such as water, food, and medical supplies.To gather information about the volcano's activity and the risks it poses to the region, including the risk of further eruptions or seismic activity.To coordinate with other countries and international organizations in the response to the disaster and to provide support to Tonga in its recovery efforts.

Learn more about Tonga eruptions at: https://brainly.com/question/927683

#SPJ1

Complete question:

Which of these are the reasons why Jacinda Ardern got involved with Tonga after the eruption?

1. the desire to preserve ocean resources in the area through satellite monitoring

2. the desire to get rid of the ash plume that threatens to cover New Zealand

3. the desire to acquire more information about the volcano's current activity

4. the desire to provide assistance to the people of Tonga by giving them provisions

3 and 4

2, 3 and 4

1 only

O 1 and 2

The _______ is the total number of organisms that an ecosystem can support.
a.
tolerance range
b.
carrying capacity
c.
competitive exclusion principle
d.
population

Answers

The carrying capacity is the total number of organisms that an ecosystem can support. so, option (b) is correct.

What is ecosystem ?

In order to create a bubble of life, different species of plants, animals, and other living things cohabit in an ecosystem. Abiotic (or nonliving) and biotic (or alive) elements coexist in ecosystems.

What is carbon dioxide ?

One part carbon and two parts oxygen make up the gas called carbon dioxide. Its usage by plants to create carbohydrates during a process known as photosynthesis makes it one of the most significant gases on the planet.

Therefore, The carrying capacity is the total number of organisms that an ecosystem can support. so, option (b) is correct.

Learn more about ecosystem from the given link.

https://brainly.com/question/842527

#SPJ1

What is the molecular formula of a compound with a molar mass of 30.08 g/mol and an empirical formula of CH3?
C3H6
C2H6
CH3
C3H9

Answers

The molecular formula of the compound would be C2H6. Option 2.

Molecular formula

The empirical formula of the compound is CH3, which has a molar mass of 15.03 g/mol.

Since the given molar mass is twice the molar mass of CH3, the molecular formula must be twice the empirical formula, which is C2H6.

Therefore, the molecular formula of the compound is C2H6.

More on molecular formulas can be found here: https://brainly.com/question/28647690

#SPJ1

Calculate the pH at the equivalence point in titrating 0. 100 M
solution of HBr with 0. 080 M NaOH:

Answers

The pH at the equivalence point in titrating the 0. 100 M solution of HBr with 0. 080 M NaOH is 7.

The Concentration of the HBr = 0.100 M

The  Concentration of the NaOH = 0.080 M

The chemical equation is as follows :

HBr + NaOH → NaBr + H₂O

The HBr is the strong acid, and the NaOH is the strong base. When the strong acid is  titrated with the strong base, then an equivalence point is always be obtained at the pH = 7.0.

Thus, the pH at the equivalence point in titrating the 0. 100 M solution HBr is the 7.0.

To learn more about pH here

https://brainly.com/question/15289741

#SPJ4

Balance the following reaction. Choose “blank” if no coefficient is needed.

C^2H^5 + O^2 ➡️CO^2 + H^2O

Answers

Answer:

Explanation:

4 C2H5  + 11 O2 --> 6 CO2  + 10 H2O

A group of students built a ramp and rolled steel balls of different sizes down the ramp onto the floor. Then they measured how far each ball rolled from the bottom of the ramp. Ramp Experiment Results Mass of Steel Ball Distance Rolled 5.3 grams 1.2 meters 8.5 grams 2.0 meters 12.4 grams 3.1 meters 15.8 grams 3.9 meters Which statement correctly explains the differences in the distances that the balls rolled? Responses(1 )Friction increased as mass increased. Friction increased as mass increased.(2)Velocity increased as mass increased. Velocity increased as mass increased.(3 )Acceleration increased as mass increased. Acceleration increased as mass increased.(4) Kinetic energy increased as mass increased.

Answers

Velocity increased as mass grew is the proper explanation for the variations in the distances that the balls travelled.

What is the primary distinction between temperature and thermal energy?

The average kinetic energy of the particles in a substance is measured by its temperature. A substance's thermal energy can be used to calculate the total kinetic energy of its constituent particles. With increased particle mobility, a substance's temperature and thermal energy rise.

What two elements influence the energy transfer rate?

Energy is transmitted to the object once the work is accomplished, at which point it moves at a new, constant speed. Kinetic energy is a form of transferable energy that depends on the mass and speed attained.

To know more about mass grew visit:-

https://brainly.com/question/6992992

#SPJ1

A placekicker in football is attempting a field goal and kicks a 0.75 kg football. The
football hits the crossbar that is 3.1 m tall. How much gravitational potential
energy does the ball have when it hits the crossbar? Show your work.

Answers

The gravitational potential energy of an object is defined as the energy possessed by an object due to its position in a gravitational field.

The formula for gravitational potential energy is

E = mgh,

where E is the energy, m is the mass of the object, g is the acceleration due to gravity (9.81 m/s²), and h is the height of the object.

In this case, the mass of the football is 0.75 kg, and the height it has is 3.1 m (the height of the crossbar). Thus, we can calculate the gravitational potential energy of the football as:

E = mgh E = (0.75 kg)(9.81 m/s²)(3.1 m) E = 22.87 J

Therefore, the football has 22.87 J of gravitational potential energy when it hits the crossbar.

To know more about gravitational energy , visit :

https://brainly.com/question/16167169

#SPJ1

How is the H2O from your faucet related to the elements in the Universe? Be specific

Answers

The H2O (water) from your faucet is composed of hydrogen and oxygen, two of the most abundant elements in the Universe. Hydrogen is the most abundant element, comprising approximately 75% of the baryonic matter in the Universe.

What is baryonic matter?

Baryonic matter refers to the type of matter that is composed of particles called baryons, which are subatomic particles made up of three quarks. The most common examples of baryons are protons and neutrons, which are the building blocks of atomic nuclei.

Baryonic matter is one of the two main types of matter in the Universe, the other being dark matter. Baryonic matter makes up only a small fraction of the total matter in the Universe, estimated to be around 5%

The H2O (water) from your faucet is composed of hydrogen and oxygen, two of the most abundant elements in the Universe. Hydrogen is the most abundant element, comprising approximately 75% of the baryonic matter in the Universe. Oxygen is the third most abundant element, after hydrogen and helium, and makes up about 0.8% of the Universe's baryonic matter.

The hydrogen in the water molecule was likely formed during the Big Bang, which is when the Universe began to expand and cool after its initial creation. The oxygen in the water molecule was likely formed through the fusion of lighter elements in stars, which occurs through a process called nucleosynthesis.

So, in a sense, the H2O from your faucet is a product of the natural processes that have been occurring in the Universe since its inception. The hydrogen and oxygen atoms that make up the water molecule have been present since the Big Bang, and have been cycling through various stages of stellar evolution and chemical reactions ever since. Ultimately, the water molecule that comes out of your faucet is a tiny, but significant, reminder of the vast and complex processes that have shaped the Universe over billions of years.

Learn more about Universe's baryonic matter click here:

https://brainly.com/question/3608381

#SPJ1

How many liters of O2 will be produced at 66.00 degrees Celsius and 2.80 kPa pressure in the decomposition of 408.70 moles KCIO3?
2KCIOg ---> 2KCI + 302(g)
Round to two decimal places.

Answers

Explanation:

To solve this problem, we need to use the ideal gas law to calculate the volume of gas produced, and then convert it to liters. The ideal gas law is given by:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles of gas, R is the gas constant, and T is the temperature in Kelvin.

First, we need to calculate the number of moles of oxygen produced in the decomposition of 408.70 moles of KCIO3. From the balanced chemical equation, we see that 2 moles of KCIO3 produces 3 moles of O2. Therefore, 408.70 moles of KCIO3 will produce:

(408.70 mol KCIO3) x (3 mol O2 / 2 mol KCIO3) = 613.05 mol O2

Next, we need to convert the temperature from Celsius to Kelvin:

T = 66.00°C + 273.15 = 339.15 K

Now we can use the ideal gas law to calculate the volume of gas produced:

PV = nRT

V = nRT/P

V = (613.05 mol) x (0.08206 L·atm/K·mol) x (339.15 K) / (2.80 kPa x 101.325 kPa/atm)

V = 16,508.89 L

Finally, we need to round the answer to two decimal places, as requested:

V ≈ 16,508.89 L ≈ 16,508.90 L (rounded to two decimal places)

Therefore, approximately 16,508.90 liters of O2 will be produced at 66.00°C and 2.80 kPa pressure in the decomposition of 408.70 moles KCIO3.

Balance the equation:FeS + O2=Fe2O3 + SO​

Answers

The given reaction between FeS and oxygen gas giving ferric oxide and sulphur dioxide can be balanced as follows:

[tex]\rm 4 FeS+ 7O_{2} \rightarrow 2Fe_{2}O_{3} + 4SO_{2}[/tex]

What is balanced chemical equations?

The balanced chemical equation of a reaction represent the perfect stoichiometry of all the reactants and products. It must obey the law of conservation of mass.

Hence, the total mass in the reactant side must be equal to the total mass in the product side. The given reaction between ferrous sulphide and oxygen gas giving sulphur dioxide and ferric oxide can be balanced as written above.

Here, 4 moles of FeS reacts with 7 moles of O₂ giving 2 moles of Fe₂O₃ and 4 moles of SO₂ gas. Here each element has the same number in both reactants side and product side.

Find more on balanced reactions:

https://brainly.com/question/14263388

#SPJ9

A piece of metal was heated and then
put it into 100.0 mL of water, initially at
23.7 °C. The metal and water were
allowed to come to an equilibrium
temperature, determined to be 27.8 °C.
How much energy did the water absorb?
J
CH,O = 4.18 _

Answers

The heat absorbed is  1713.8 J

What is the heat capacity?

Heat capacity is the amount of heat energy required to increase the temperature of a substance by one degree Celsius (or Kelvin). We can use it as the means that we can use to identify a given substance.

Heat capacity is important in engineering thermodynamics, materials science, and process engineering.

We know that;

H = mcdT

H = 100 g * 4.18 * (27.8 - 23.7)

H = 1713.8 J

Learn more about heat capacity:https://brainly.com/question/28302909

#SPJ1

Describe the feedback loop involving Arctic snow and ice cover, albedo and temperature. Is it positive or negative?

Answers

Answer: The feedback loop involving Arctic snow and ice cover, albedo, and temperature is a positive feedback loop.

Explanation:

Arctic snow and ice cover reflect a significant amount of sunlight back into space, which helps keep the Arctic region cool. This reflective ability is known as albedo. However, as global temperatures increase due to greenhouse gas emissions, Arctic ice and snow begin to melt, reducing the amount of reflective surface and causing more sunlight to be absorbed by the darker ocean water and land, which further amplifies warming. This reduction in albedo leads to an increase in temperature, which in turn leads to more melting of snow and ice, creating a self-reinforcing cycle.

As the Arctic continues to warm, this feedback loop becomes even more pronounced, leading to even more melting and reduced albedo, which leads to even more warming. This process can have significant consequences for global climate, as the Arctic plays an important role in regulating global climate patterns.


Overall, the Arctic snow and ice cover, albedo, and temperature feedback loop is a positive feedback loop, amplifying the initial warming effect caused by greenhouse gas emissions and contributing to further climate change.

Choose the best answer.
Determine if the following reaction is a redox reaction; if it is, select the correct overall oxidation-reduction reaction. (You may need to use Tables A-1, A-2, A-3, and A-4 in your CRG for oxidation numbers.)
2Al(s) +Cr20z(aq) - Al20g(aq) + 2Cr(s)

Answers

A process which involves the addition of oxygen is an oxidation reaction and the process which involves the removal of oxygen is a reduction reaction. Here the given reaction is a redox reaction.

What is a redox reaction?

The chemical reactions which involves both oxidation and reduction are known as redox reactions. An oxidizing agent is a substance which can accept one or more electrons whereas the reducing agent is a substance which can give one or more electrons.

The given reaction is represented as:

2Al (s) + Cr₂O₃ (s) → 2Cr (s) + Al₂O₃ (s)

The oxidation reaction is:

2Al³⁺ → 2Al + 6e⁻

The reduction reaction is:

2Cr³⁺ + 6e⁻ → 2Cr

To know more about redox reaction, visit;

https://brainly.com/question/2671074

#SPJ1

find the number of moles in 30 grams of HF

Answers

Answer:

1.5 moles

Explanation:

Molar mass of HF- 20.01g/mol

Grams needed- 30g

The following reaction is completed by mixing 7.3 g of solid Mg3N2 with 5.3 g of liquid H2O.



Mg3N2 (s) + 3 H2O (l) ® 3 MgO (s) + 2 NH3 (g)





Which substance is the limiting reactant? Show the calculation you did to determine the limiting reactant. Also, give the reason you chose this substance by interpreting the calculation.






Which substance is the excess reactant?










How much of the excess reactant is left when the reaction stops?










If 2.34 g of NH3 gas was captured, what is the percent yield of NH3?














What is the total theoretical amount, in grams, of product (MgO + NH3) that should be produced?

Answers

a) Mg3N2 is the limiting reactant.

b) H2O is the excess reactant.

c) 1.41 g of the excess reactant is left when the reaction stops

d) The percent yield of NH3 is 95.51%.

e) Total Theoretical yield of product is 11.17g.

What is  reaction?

A reaction is a process that involves a change in the arrangement of atoms, molecules, or ions to form new substances with different properties from the original substances.

a) First, we need to convert the masses of Mg3N2 and H2O to moles:

Moles of Mg3N2 = 7.3 g / (3 x 24.31 g/mol + 2 x 14.01 g/mol) = 0.0442 mol

Moles of H2O = 5.3 g / 18.02 g/mol = 0.294 mol

Next, we need to find out which reactant is limiting by comparing the number of moles of each reactant to the stoichiometric ratio:

Mg3N2 : H2O = 0.0442 mol : (0.294 mol/3) = 0.098 mol

The ratio of Mg3N2 to H2O is 1:3, so we need to divide the number of moles of H2O by 3.

Since the ratio of Mg3N2 to H2O is greater than 1:3, Mg3N2 is the limiting reactant.

b) H2O is the excess reactant.

c) from balanced that, chemical reaction it is clear

I mole of Mg3N2 react with 3 mole H2O

0:0722 mole of Mg 3 N₂ react with = 3x0-0722 =0.2166 mol of H20

mass of H2o reacted with Mg, N₂ = moles * molar mass

= 0.2166 x 18  = 3.89 g of H20

remaining Excess reagent after the reaction

⇒ 5.30 g -3.89g

= 1.41 g

d) from balanced chemical reaction it is clear that

I mole of Mg3N₂ produced = mole of NH3

0.0722 mole of Mg 3 N₂ produced =  2X0.0722 mole of NH3

= 0.144 mole of NH3

mass of NH3 produced = 0.144 x 17 = 2.45 g NH3

Theoretical yield = 2.45 g of NH3

Actual yield = 2.34g of NH3

Percent yield = actual yield/ Percent yield X 100

= 2.34/ 2.45 X 100 = 95.51%

e) From balanced chemical rxn it is clear that

I mole of Mg3 N₂ produced = 3 mole of MgO

0.0722 mole of Mg3 N₂ produced= 3x0.0722 mole of MgO

                                                          = 0.2166 mole of MgO

mass of MgO produced = 0.2166 x 40.36 8.72 g of MgO

                                        =8.72 g of MgO

Total Theoretical yield of product (MgO + NH3) in gram = 2.45+ 8.72  

=  11.17g

Therefore, Mg3N2 is the limiting reactant, H2O is the excess reactant, 1.41 g of the excess reactant is left when the reaction stops, The percent yield of NH3 is 95.51% and Total Theoretical yield of product is 11.17g.

To learn more about reaction the link

https://brainly.com/question/11231920

#SPJ1

How do you think improving technology to identify locations of fossil fuels could benefit people and the environment?

Answers

Clean energy technologies like wind and solar power produce energy without burning fossil fuels. Other technologies reduce greenhouse gas emissions through energy efficiency or by capturing these gases before they can enter the atmosphere. Fossil fuels can generate a large amount of electricity at a single location.
They can be found very easily.
They are cost-effective.
Transportation of oil and gas can be done easily through pipelines.
They have become safer over time.
Despite being a finite resource, it is available in plenty.

Predict what will happen to reaction rates in the following scenarios and explain why!
1. You heat up a test tube containing reacting Magnesium metal and Hydrochloric acid. this reaction rate will...
2. You decrease the pressure in a syringe containing reacting Sodium chloride and Silver nitrate. This reaction rate will...

Answers

Answer:

1. Heating up a test tube containing reacting Magnesium metal and Hydrochloric acid will increase the reaction rate. This is because heating increases the kinetic energy of the reactant particles, making them move faster and collide more frequently and with greater energy. The increased frequency and energy of collisions will result in a higher rate of successful collisions, leading to a faster reaction.

2. Decreasing the pressure in a syringe containing reacting Sodium chloride and Silver nitrate will not have any significant effect on the reaction rate. This is because the reaction rate is determined by the concentration of the reactants, not the pressure. Lowering the pressure will cause the gases to expand, but it will not affect the concentration of the reactants or the frequency of their collisions. Therefore, the reaction rate will remain unchanged.

Explanation:

cann u help me with this ASAP

Answers

Answer:

yes and can you help me?

Explanation:

it's saying you need to use information from chapter 14, I don't have that textbook, so I can't exactly do it for you. but  find the information on the topic that most interests you in that chapter, break it up in pieces, write out your info in simple terms, and use that to follow the steps you need for the "letter"

How many grams of NaCI must be added to 3 liters of H2O to create a solution with a 1.8 molarity?

Answers

Explanation:

Refer to pic.............

N2 + 3H2 - ...> 2NH3
How many liters of NHs will be produced at a temperature of 208.00 degrees celsius and 4.50 torr pressure to consume 26.00 moles of N2?
Round to two decimal places.

Answers

Answer:

To solve this problem, we need to use the ideal gas law to find the volume of NH3 produced. The ideal gas law is PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

First, we need to find the volume of N2 consumed:

PV = nRT

V = nRT/P

V = (26.00 mol)(0.08206 L·atm/mol·K)(481.15 K)/(4.50 torr/760 torr/atm)

V = 91.9 L

According to the balanced chemical equation, 2 moles of NH3 are produced for every 1 mole of N2 consumed. Therefore, the number of moles of NH3 produced is:

n(NH3) = 2 x n(N2) = 2 x 26.00 mol = 52.00 mol

Next, we can use the ideal gas law to find the volume of NH3 produced:

PV = nRT

V = nRT/P

V = (52.00 mol)(0.08206 L·atm/mol·K)(481.15 K)/(4.50 torr/760 torr/atm)

V = 183.7 L

Therefore, the volume of NH3 produced is 183.7 liters, rounded to two decimal places.

I need help with this problem

Answers

Ionic bonds are formed by I and V

How are ionic bonds formed?

Ionic bonds are formed between two atoms or ions with opposite charges. One atom or ion donates one or more electrons to the other atom or ion, which accepts the electrons, resulting in the formation of an ionic compound.

Ionic bonding typically occurs between a metal and a non-metal, although there are exceptions. Metals tend to lose one or more electrons to become positively charged cations, while non-metals tend to gain one or more electrons to become negatively charged anions.

Learn more about Ionic bonds:https://brainly.com/question/11527546

#SPJ1

Describe how minerals form.

Answers

Answer:

Minerals can form in three primary ways being precipitation, crystallization from a magma and solid- state transformation by chemical reactions (metamorphism).

how many moles of barium are in a sample containing 4.25 x 10^26 atoms of barium?

Answers

Answer:

Below

Explanation:

1 mole = 6.022 x 10^23 particles

4.25 x 10^26 atoms / 6.022 x 10^23 atoms/ mole = ~ 706 moles

What is the mole fraction of each component in a solution made
by mixing 300 g of ethanol (C2H5OH) and 500.0 g of water?

Answers

The mole fraction of ethanol in the solution is 0.1903, and the mole fraction of water in the solution is 0.8097.

Mole fractions

To calculate the mole fraction of each component in the solution, we need to determine the number of moles of each component first.

The molar mass of ethanol (C2H5OH) is:

2(12.01 g/mol) + 6(1.01 g/mol) + 1(16.00 g/mol) = 46.07 g/mol

Number of moles of ethanol = mass/molar mass = 300 g / 46.07 g/mol = 6.5166 mol

The molar mass of water (H2O) is:

2(1.01 g/mol) + 1(16.00 g/mol) = 18.02 g/mol

Number of moles of water = mass/molar mass = 500.0 g / 18.02 g/mol = 27.7459 mol

The total number of moles in the solution is: 6.5166 mol + 27.7459 mol = 34.2625 mol

The mole fraction of ethanol is:

moles of ethanol / total moles = 6.5166 mol / 34.2625 mol = 0.1903

The mole fraction of water is:

moles of water / total moles = 27.7459 mol / 34.2625 mol = 0.8097

Therefore, the mole fraction of ethanol in the solution is 0.1903, and the mole fraction of water in the solution is 0.8097.

More on mole fractions can be found here: https://brainly.com/question/29808190

#SPJ1

Determine the mass of silver chloride precipitated when 2g of sodium chloride solution react with silver trioxonitrate (v) solution. (Ag=108, N=14, O=16, Na =23, Cl=35.5)

Answers

The mass of silver chloride precipitated when 2g of sodium chloride solution reacted with silver trioxonitrate (v) solution is 4.88g.

Let us discuss this in detail,

The balanced equation of the reaction of sodium chloride and silver trioxonitrate is

2AgNO3 + 2NaCl → 2AgCl + 2NaNO3

From the equation, 2 moles of silver chloride are produced for every 2 moles of sodium chloride.

No.of moles in 2g sodium chloride solution

moles = mass / molar mass

The molar mass of sodium chloride (NaCl) is:

Na = 23 g/mol

Cl = 35.5 g/mol

Molar mass of NaCl = Na + Cl = 23 + 35.5 = 58.5 g/mol

by using the above formula

moles of NaCl = 2g / 58.5 g/mol = 0.034 moles

The molar mass of AgCl is:

Ag = 108 g/mol

Cl = 35.5 g/mol

Molar mass of AgCl = Ag + Cl = 108 + 35.5 = 143.5 g/mol

Using the formula:

mass = moles x molar mass

The mass of AgCl is:

mass of AgCl = 0.034 moles x 143.5 g/mol = 4.88 g

The mass of silver chloride precipitated when 2g of sodium chloride solution reacted with silver trioxonitrate (v) solution is 4.88g.

To learn more about, Molecular mass of a compound

https://brainly.com/question/24236159

Other Questions
CASE: THE TROPHY PROJECT 1.1 Critique the case from an Industry 4.0 characteristics perspective. (Note that "critique" means to "analyse the situation critically include SWOT analysis .*The ill-fated Trophy Project1.1 Critique the case from an Industry 4.0 characteristics perspective. (Note that "critique" means to "analyse the situation critically"). 1.2 Based on your critique, what should be done to remedy the situation? TIP: Critique means delivering a critical discussion regarding the situation described in the case. It is advisable to do a SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis to better understand the situation under scrutiny. This must be followed by categorising the problems uncovered into Behavioural, Structural, and Operational dimensions. Keep in mind that the world has entered the "collaboratist" Fourth Industrial Revolution (Industry 4.0 economy) that demands organisations to undergo transformation and change in many respects. A.State the uses of the following painting and decorating tools: filing knife; palette knife; paint stirrer; hacking knife; scrapping knife; nail punch. B. Sketch all of the listed tools in question A above. Help me please find the answer !! Select the graph that represents the solution of the compound inequality 6 4x + 6 < 14 How Okwonko's life was influenced by his wilder social context According to President Harry Truman, what was one reason he ordered United States forces to support South Korean government troops in 1950? Describe the transformations of g(x) as it relates to the parent function f(x)=2^(x). g(x)=-7(2)^(10x-3)+4 Select all the transformations that apply: Using the IS-LM-FE model of a closed economy, explain the effectof a temporary decrease in labour productivity on GDP,the real interest rate, and the price level. Vinny borrowed $20,000 for 10 years at 5.3 percent compoundedmonthly. How much of payment 93 will go towards payinginterest?Group of answer choices$25.80$24.13$23.28$24.97 Raj lent out Rs 65,000 for 3 years at 25% per annum and borrowed Rs 60,000 for 2 years at 15% per annum. How mach did he gain or lose? a boy eats (1)/(4 )of a loaf at breakfast and (5)/(8) of it for lunch. what fraction of the loaf is left? How many grams are in 6.500 moles of calcium nitride, Ca3N2? What enzyme (or chemical method) was used on Protein Example #2to make the C fragments?Group of answer choicesa. trypsinb. chymotrypsinc. V8 proteased. asp-N-proteasee. pepsinf. cyanogen bromi Let u = 3i - 2j + 4k, v = -7i + 4j - 5k, w = i + j + ka.) calculate w(u + v)b.) calculate the angle between u and wc.) calculate proy uv determine the next three terms of each of the number patterns 1 2 4 8 16 32 Vincent is a truck driver making approximately $4000 monthly. His offer of employment states that he would receive a 0.2% monthly increase in his income. He is heavily invested in a tax-free ETF that has a return of .6667% monthly or 8% annually. His investment is to be compounded monthly. Vincent would like to save for a car in 5 years that would cost $100,000. He presently put $5000 in his ETF. If he expects to save 15% of his monthly income (adjust for the .2% monthly increase in income) for the next 5 years. What would be the value of his investment at the end of year 5? Would it reach his goal of $100,000? (Assume monthly compounding) Write a polynomial f (x) that meets the given conditions. Polynomial of lowest degree with zeros of -2 (multiplicity 2) and 3 (multiplicity 2) and with f(0)=108 Select one: a. f (x) = -3x4 + 6x3 + 33x2 - 18x - 108 b. f (x) = -3x4 + 6x3 + 33x2 - 36x - 108 c. f (x) = -3x4 + 6x3 - 111x2 - 36x - 108 d. f (x) = x4 - 2x3 - 11x2 + 12x - 108 100 POINTS!!!! ILL GIVE BRAINLEIST. What is true when two proper fractions are multiplied together?The product will be larger than both factors.The product will be larger than the smaller factor but smaller than the larger factor.The product will be smaller than both factors.The product will be an improper fraction. Brainliest for correct answer Please Help I need the answer now