According the question the Percent yield is 11.99%
What is yield?Yield is an economic term referring to the income generated by an investment over a period of time. It is usually expressed as a percentage of the initial investment and is calculated by taking the total income earned and dividing it by the initial investment. Yield is an important measure of the performance of an investment, and is a key factor in determining the attractiveness of an investment. Yields can be calculated for individual investments, or for portfolios of investments. Yields can also be calculated for different types of investments, such as stocks, bonds, and mutual funds. Yields are also used to compare investments with different levels of risk, so investors can make informed decisions about their investments. Yields are affected by a variety of factors, including interest rates, inflation, and market conditions.
The percent yield can be calculated using the formula:
Percent yield = (Actual yield / Theoretical yield) * 100
For Magnesium Chloride, the theoretical yield is 14.87 moles, and the actual yield is 1.78 moles.
Therefore, the percent yield is:
Percent yield = (1.78 / 14.87) * 100 = 11.99%
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Please help!
Washington and Oregon have
very soft water in most places.
What is the relative quantity of
ions dissolved in the water in
these states?
A. The water holds a large number of ions.
B. The water holds absolutely no ions at all.
C. The water holds a small number of ions.
The relative quantity of the water holds a small number of ions. ions dissolved in the water in. The correct option to this question is C.
Definition Many minerals, including calcium and magnesium, are present in water by nature. Depending on how much of these minerals are present in your water, you can decide if it is "hard" or "soft" to drink. More calcium and/or magnesium is present in hard water than in soft water.All that is present in soft water are the molecules of H2O; no mineral deposits of any kind. Yet minerals do not naturally exist in water. The water is regarded as soft water when it rains. When calcium and magnesium are absorbed by the water as it percolates into the soil, the water turns hard.Most healthy people can drink soft water without any problems. The higher salt levels seen in soft water are often a cause for worry. Indeed, the salt content of soft water is just little higher.For more information on soft water kindly visit to
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what would you do to calculate the net on the roller coaster at any time while it is moving?
Answer:
Calculating the net force on a roller coaster at any time while it is moving requires knowledge of several factors, including the coaster's mass, velocity, acceleration, and the forces acting on it. Here are the general steps to calculate the net force:
Determine the forces acting on the roller coaster: To calculate the net force, you need to know all the forces acting on the coaster. The main forces acting on a roller coaster are gravitational force, normal force, frictional force, and air resistance (if applicable).
Find the direction of each force: You need to determine the direction in which each force is acting. Gravitational force is always acting downwards, normal force acts perpendicular to the surface of the track, and frictional force acts opposite to the direction of motion.
Determine the magnitude of each force: You need to know the magnitude (or strength) of each force acting on the coaster. Gravitational force can be calculated using the equation F = mg, where m is the mass of the coaster and g is the acceleration due to gravity (9.8 m/s^2). Normal force can be calculated using the equation N = mg*cos(theta), where theta is the angle between the coaster's velocity and the horizontal surface of the track. Frictional force can be calculated using the equation F_friction = friction coefficient * N, where friction coefficient is a constant that depends on the materials in contact and N is the normal force.
Determine the direction of motion: You need to know the direction in which the roller coaster is moving. This will be used to determine the direction of the net force acting on the coaster.
Calculate the net force: Once you know the magnitude and direction of each force, you can calculate the net force on the coaster using the equation F_net = ma, where m is the mass of the coaster and a is the acceleration.
Calculate the acceleration: To calculate the acceleration of the roller coaster, you can use the equation a = F_net / m.
Once you have calculated the net force and acceleration of the roller coaster, you can use these values to determine the coaster's speed and position at any given time, using kinematic equations.
Explanation:
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.
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.
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.
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.
find the number of moles in 30 grams of HF
Answer:
1.5 moles
Explanation:
Molar mass of HF- 20.01g/mol
Grams needed- 30g
How many grams of NaCI must be added to 3 liters of H2O to create a solution with a 1.8 molarity?
Explanation:
Refer to pic.............
The _______ is the total number of organisms that an ecosystem can support.
a.
tolerance range
b.
carrying capacity
c.
competitive exclusion principle
d.
population
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.
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How is the H2O from your faucet related to the elements in the Universe? Be specific
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.
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Pls I need help urgently pls. Search the Lewis dot structure for water and ethanol and examine the structures and identify which part is partial negative and partial positive.
Answer:
The oxygen atom in water is partially negative and the hydrogen atoms are partially positive. In ethanol, the oxygen atom is partially negative and the carbon and hydrogen atoms are partially positive.
Which of these is an example of chemical weathering? A: Rock pieces carried by river water wear away pieces of rock in the riverbed B: Gravitational force pulls rocks to the bottom of a mountain C: Plants wedge their roots into cracks in rock and push it apart D: Acid rainwater seeps into the ground and dissolves limestone
Answer:
D: Acid rainwater seeps into the ground and dissolves limestone
describe the abundance of silicate minerals and list commom rock forming silucate minerals
Answer:
The silicates, owing to their abundance on Earth, constitute the most important mineral class. Approximately 25 percent of all known minerals and 40 percent of the most common ones are silicates; the igneous rocks that make up more than 90 percent of Earth's crust are composed of virtually all silicates. The vast majority of the minerals that make up the rocks of Earth's crust are silicate minerals. These include minerals such as quartz, feldspar, mica, amphibole, pyroxene, olivine, and a great variety of clay minerals.
Explanation:
anybody have done this packet before ?
Compounds formed and named:
Fe²⁺ + Cl⁻¹ → FeCl₂, Iron(II) chloride
Mn²⁺ + Cl⁻¹ → MnCl₂, Manganese(II) chloride
Hg²⁺ + O⁻² → HgO, Mercury(I) oxide
Cu⁺¹ + O⁻² → Cu₂O, Copper(I) oxide
Cu⁺² + O⁻² → CuO, Copper(II) oxide
Sn⁺⁴ + Br⁻¹ → SnBr₄, Tin(IV) bromide
What is the traditional way of naming compounds?The traditional system of naming compounds typically involves using the names of the elements in the compound along with suffixes to indicate the relative proportions of each element. For example, the compound NaCl would be named sodium chloride, and the compound CaCO₃ would be named calcium carbonate.
The traditional system is often used for common, well-known compounds, while the systematic system of naming, which uses prefixes and numerical indicators to indicate the number of each element in the compound, is often used for more complex or less well-known compounds.
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A 74.0-gram piece of metal at 94.0 °C is placed in 120.0 g of water in a calorimeter at 26.5 °C. The final temperature in the calorimeter is 32.0 °C. Determine the specific heat of the metal. Show your work by listing various steps, and explain how the law of conservation of energy applies to this situation.
According to the information from the question, the metal's specific heat is 0.60 J/goC.
By specific heat, what is meant?Commonly known as specific heat, this term means the quantity of energy required to raise a material's temperature by 1 in one gram. Typically, caloric or joules a gram per degree Celsius are used as the units for specific heat. For instance, water has a specific heat of 1 caloric (or 4.186 megawatts) per gram per degree Celsius.
The following information was gleaned from the query:
Metal mass (M) equals 74 g
Metal's temperature (T) is 94 °C.
120 g is the mass of water (Mvv).
Water's temperature (Tvv) is 26.5 °C.
Temperature of equilibrium (Te) is 32 °C.
Water's specific heat capacity (Cvv) is 4.184 J/goC.
Specific heat capacity of metal (C) =?
How to calculate the metal's specific heat capacity
The following methods can be used to determine the gold sample's specific heat capacity:
The principle of energy states that the total that:
Heat loss = Heat gain
MC(T –Tₑ) = MᵥᵥC(Tₑ – Tᵥᵥ)
74 × C(94 – 32) = 120 × 4.184 (32 – 26.5)
C × 4588 = 2761.44
Divide both side by 4588
C = 2761.44 / 4588
C = 0.60 J/gºC
Hence, the metal has a specific heat capacity approximately 0.60 J/goC.
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which metals are better at making cations and which are better staying neutrual
Cations are formed when impartial atoms lose electrons, which are then transferred to other atoms. The resulting cation is positively charged. For example, this manner is accountable for the advent of sodium chloride, better recognized as table salt. The sodium atom loses an electron, forming a sodium cation.
What kind of issue are most in all likelihood to shape cations?metals
This is absolutely one of the chemical houses of metals and nonmetals: metals have a tendency to shape cations, whilst nonmetals have a tendency to structure anions.
Which metallic is succesful of forming more than one cation?Most transition metals vary from the metals of Groups 1, 2, and 13 in that they are capable of forming more than one cation with distinct ionic charges. As an example, iron frequently types two unique ions.
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PLS HELP!!!!!!!!!!!!!! 80 pts and will mark brainliest! Compare the results from parts A and B. Does the change in temperature appear to be proportional to the amount of copper(II) sulfate used? (edmentum lab)
In general, if the change in temperature is proportional to the amount of copper(II) sulfate used, then increasing the amount of copper(II) sulfate used will lead to a corresponding increase in temperature change, and decreasing the amount of copper(II) sulfate used will result in a decrease in temperature change.
What causes temperature change in substances?Temperature change in substances can be caused by a variety of factors, including the addition or removal of heat energy, changes in pressure, chemical reactions, and phase changes (such as melting, boiling, or freezing).
If this relationship does not hold, it could indicate that other factors are also at play, such as a limiting reagent or a change in reaction conditions. Therefore, comparing the results from parts A and B can help determine whether the change in temperature appears to be proportional to the amount of copper(II) sulfate used or not.
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The complete question is:
Copper(II) Sulfate and Zinc
The reaction between zinc (Zn) and copper sulfate (CuSO₄) is an oxidation-reduction reaction. Zinc reacts with copper sulfate to form zinc sulfate. So, zinc undergoes oxidation. At the same time, copper sulfate reduces to pure metallic copper and so undergoes reduction. Here is the equation for the reaction:
Zn + CuSO₄ → Cu + ZnSO₄.
In this task, you’ll carry out this oxidation-reduction reaction to ±nd the enthalpy of the reaction.
If you need a refresher on using a graduated cylinder and an electronic balance, watch the videos about measuring volume and measuring mass. Before you begin this task, review the lab safety guidelines.
Estimated time to complete: 1 hour
If you’ve purchased an Edmentum lab kit, remove the items that appear in the equipment list. The chemicals are located inside a box within the kit. You’ll also need distilled or tap water and a pen or a fine-tip marker for labeling test tubes.
You’ll need these materials:
test tube rack test tubes (2), 16 millimeter × 150 millimetertest tube labels (2)electronic balancegraduated cylinder, 25 millilitervolumetric flask, 25 milliliterweighing boats (3)wash the bottle with distilled water (tap water is acceptable but may skew experimental results; use room temperature water)thermometer, readable from 0°C to 100°C (32°F to 212°F)pipettes (2)scoopgogglesapronglovespen or fine-tip markerchemicals from kit:copper(II) sulfate pentahydrate (3.12 grams)zinc powder (0.75 grams)Compare the results from parts A and B. Does the change in temperature appear to be proportional to the amount of copper(II) sulfate used? (edmentum lab)
An atom of one isotope of protactinium contains 91 protons and 143 neutrons.
What is the correct symbol for this atom?
The number of protons in an atoms gives its atomic number whereas the number of protons and neutrons gives the mass number. The symbol of the element protactinium is Pa.
What is an isotope?The isotope can be defined as the chemical element which possess the same number of protons and electrons, but differ in the number of neutrons. These are the elements which have the same atomic number but different mass numbers.
Here the mass number of the element protactinium = 91 + 143 = 234. The atomic number is 91, so the isotope can be denoted as ₉₁²³⁴Pa.
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What percent of AgNO3 is silver?
Explanation:
Mass percent of silver in silver nitrate = 63.5 g100 g×100%=63.5%
The percent of silver in AgNO₃ is 63.5%.
Percent composition is the percent ratio of mass of the substance to the total mass. It is calculated to be the mass of the substance divided by the molar mass of the substance which is then multiplied by 100%.
In chemistry, yield is a measure of the quantity of moles of a product formed in relation to the reactant consumed, obtained in a chemical reaction, usually expressed as a percentage.
Atomic mass of Ag = 108
Atomic mass of N = 14
Atomic mass of O = 16
Molar mass of AgNO₃ = 108 + 14 + ( 3 × 16 )
= 170 g/mol
Percentage of silver = (mass of silver/total mass) × 100
= 63.5%.
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List two places (name the country and the direction; for example West of Chile or *
North of Spain) where there is a CONVERGENT boundary
A convergent boundary is a type of tectonic boundary where two plates of the Earth's lithosphere move towards each other and collide, resulting in the deformation and destruction of the plates. This type of boundary can occur between two continental plates, between an oceanic plate and a continental plate, or between two oceanic plates.
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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?
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.
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Volcanoes can be destructive LOCALLY causing all of the following immediate effects EXCEPT:
O New growth in forests
O Personal damage
O Lack of breathable air
O Disruption of clean water
O Death
Answer:
New growth of trees is an exception
Explanation:
when volcanoes erupt, they release hot magma that is destructive to the environment causing personal damage, lack of breathable air and death.
heat produce cannot in any way help in growth of trees
Write a short scenario to describe the motion represented on the graph.
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.
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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.
how many moles of barium are in a sample containing 4.25 x 10^26 atoms of barium?
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
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
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.
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Answer:The solubility of KNO3 is approximately 110 g/100 mL
Explanation:
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 _
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
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__C2H5OH + __O2 -> __CO2 + H2O Balance the Equation
Answer: C2H5OH + 3O2-------=2CO2 + 3H2O
Explanation:
PLEASE HELP! Please answer thanks
Answer:
4m
Explanation:
wavelength is peak to peak and 4m is the closest
A student prepares a solution by dissolving 20.0 g of aluminum chloride (AlCl3) in enough water to produce 500 mL of solution. What is the molarity of the solution?
Answer:
The molarity (M) of a solution is calculated by dividing the moles of solute by the volume of solution in liters.
First, we need to calculate the moles of aluminum chloride:
moles of AlCl3 = mass / molar mass
moles of AlCl3 = 20.0 g / 133.34 g/mol
moles of AlCl3 = 0.150 mol
Next, we need to convert the volume of solution from milliliters to liters:
volume of solution = 500 mL / 1000 mL/L
volume of solution = 0.500 L
Finally, we can calculate the molarity of the solution:
Molarity = moles of solute / volume of solution
Molarity = 0.150 mol / 0.500 L
Molarity = 0.30 M
Therefore, the molarity of the aluminum chloride solution is 0.30 M.
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)
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
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if 15.0 g silver nitrate is reacted with excess sodium bromide, how many moles of silver bromide will form
The diagram shows three containers with the same volume. Each container is filled with a different amount of the same gas at constant temperature. The first container, filled with N particles of the gas, has a gas pressure of 50 kPa. The second container, filled with 2N particles, has a gas pressure of kPa. The third container, filled with 3N particles, has a gas pressure of kPa.
The gas pressure in each container is directly proportional to the number of particles of gas present.
What is gas pressure?Gas pressure is the pressure exerted by a gas when it is in a closed container. It is caused by the molecules of the gas colliding with each other and with the walls of the container. Gas pressure is usually measured in atmospheres, millimeters of mercury, or pascals. It is affected by a number of factors, such as the amount of gas present in a container, the temperature of the gas, and the volume of the container.
According to Boyle's law, the pressure of a gas is inversely proportional to its volume. Therefore, the pressure in each container is directly proportional to the number of particles of gas present, and the pressure in the first container is 50 kPa, the pressure in the second container is 100 kPa, and the pressure in the third container is 150 kPa.
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