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The molar mass of H2 = 2.0159 g/mol
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Is the molar mass of gas dependant on the type of gas?
Yes as is the molar mass of anything else.
What is the molar mass of amonia gas?
Molar mass of NH3 = 17.03052g/mol
What is the ratio of the rates of diffusion of hydrogen gas to ethane gas C2H6?
According to Graham's Law of Effusion, the rate of diffusion of a gas is inversely related to the square root of the molar mass. Thus, smaller (lighter) gases diffuse faster than larger, heavier gases. Molar mass of H2 = 2 and molar mass of C2H6 = 30. Sqrt 2 = 1.41 and sqrt 30 = 5.48, so the ratio is 5.48/1.41 = 3.88 or H2 will diffuse almost 4x faster (3.88x) than ethane. The ratio of H2/C2H6 would be the inverse, or 1.41/5.48 = 0.257, meaning that the rate of diffusion of ethane is about 26% that of hydrogen.
In a chemical interaction 10 g of hydrogen chloride is added to 20 g of zinc to form 24 g of zinc chloride and a certain amount of hydrogen gas. What mass of hydrogen gas is expected to be formed 6?
The maximum yield of H2 from this reaction under the conditions given is 0.3 g.This is a limiting reagent (reactant) question. The yield of hydrogen gas (H2) is determined for both the hydrogen chloride and zinc. The limiting reagent will yield less H2, which is the amount of H2 that can be formed under the given conditions.Start with a balanced equation:Zn + 2HCl --> ZnCl2 + H2You need the molar masses of Zn and HCl. I'm going to round them to whole numbers.HCl: 36 g/molZn: 65 g/molH2: 2 g/molBasic procedure:Determine the moles of the reactant by dividing by its molar mass. Because molar mass is a fraction (g/mol) you can divide by multiplying by its reciprocal. Then multiply by the mole ratio between the reactant and hydrogen gas from the balanced equation, so that mol H2 is in the numerator. Finally, multiply by the molar mass of H2 to get the mass of H2 produced.Yield of H2 from 10 g HCl:10 g HCl x (1 mol HCl)/(36 g HCl) x (1 mol H2)/(2 mol HCl) x (2 g H2)/(1 mol H2) = 0.3 g H2 rounded to one significant figureYield of H2 from 20 g Zn:20 g Zn x (1 mol Zn)/(65 g Zn) x (1 mol H2)/(1 mol Zn) x (2 g H2)/(1 mol H2)= 0.6 mol H2 rounded to one significant figureThe limiting reagent is HCl, which means that the maximum yield of H2 is 0.3 mol H2.
Which element has lowest destiny?
Hydrogen is the element with the lowest density. With the atomic mass of the H atom being 1, the molecular mass of hydrogen gas, H2 is 2. This molar mass is lower than any other element in the periodic table.
Is the molar mass of gas dependant on the type of gas?
Yes as is the molar mass of anything else.
What is the molar mass of amonia gas?
Molar mass of NH3 = 17.03052g/mol
What is the ratio of the rates of diffusion of hydrogen gas to ethane gas C2H6?
According to Graham's Law of Effusion, the rate of diffusion of a gas is inversely related to the square root of the molar mass. Thus, smaller (lighter) gases diffuse faster than larger, heavier gases. Molar mass of H2 = 2 and molar mass of C2H6 = 30. Sqrt 2 = 1.41 and sqrt 30 = 5.48, so the ratio is 5.48/1.41 = 3.88 or H2 will diffuse almost 4x faster (3.88x) than ethane. The ratio of H2/C2H6 would be the inverse, or 1.41/5.48 = 0.257, meaning that the rate of diffusion of ethane is about 26% that of hydrogen.
What is acetone's percent composition by mass?
%C= 62.0% %H2= 10.4% %O2= 27.5% To find these, you divide the molar mass of the specific element in the compound divided by the molar mass of the entire compound.
State one way in which molecues of hydregen and molecues of oxygen different?
The molar mas of H2 is 16; the molar mass of O2 is 32.
What is the mass of 4 moles of CO2?
Hydrogen gas is H2. 1 moles H2 has a molar mass of 2.0158. Thus, 4 moles H2 gas has a mass of2.0158 g/mole x 4 moles = 8.063 g
In a chemical interaction 10 g of hydrogen chloride is added to 20 g of zinc to form 24 g of zinc chloride and a certain amount of hydrogen gas. What mass of hydrogen gas is expected to be formed 6?
The maximum yield of H2 from this reaction under the conditions given is 0.3 g.This is a limiting reagent (reactant) question. The yield of hydrogen gas (H2) is determined for both the hydrogen chloride and zinc. The limiting reagent will yield less H2, which is the amount of H2 that can be formed under the given conditions.Start with a balanced equation:Zn + 2HCl --> ZnCl2 + H2You need the molar masses of Zn and HCl. I'm going to round them to whole numbers.HCl: 36 g/molZn: 65 g/molH2: 2 g/molBasic procedure:Determine the moles of the reactant by dividing by its molar mass. Because molar mass is a fraction (g/mol) you can divide by multiplying by its reciprocal. Then multiply by the mole ratio between the reactant and hydrogen gas from the balanced equation, so that mol H2 is in the numerator. Finally, multiply by the molar mass of H2 to get the mass of H2 produced.Yield of H2 from 10 g HCl:10 g HCl x (1 mol HCl)/(36 g HCl) x (1 mol H2)/(2 mol HCl) x (2 g H2)/(1 mol H2) = 0.3 g H2 rounded to one significant figureYield of H2 from 20 g Zn:20 g Zn x (1 mol Zn)/(65 g Zn) x (1 mol H2)/(1 mol Zn) x (2 g H2)/(1 mol H2)= 0.6 mol H2 rounded to one significant figureThe limiting reagent is HCl, which means that the maximum yield of H2 is 0.3 mol H2.
Which element has lowest destiny?
Hydrogen is the element with the lowest density. With the atomic mass of the H atom being 1, the molecular mass of hydrogen gas, H2 is 2. This molar mass is lower than any other element in the periodic table.
What is the molar mass of oxygen gas?
Oxygen gas is composed of diatomic O2 molecules. From the Periodic Table, the atomic weight indicates that the molar mass of oxygen atoms is 16.0g/mole. The diatomic molecule O2 has twice the molar mass as oxygen atoms, and its molar mass is 32g/mole.
Properties of mass gas?
The speed of the molecules in a gas is proportional to the temperature and is inversely proportional to molar mass of the gas.
What is the molar mass of the following compound H2O?
The molar mass of hydrogen gas (H2) is 2.0158g. Hydrogen gas is diatomic therefore it's formula is H2. The atomic mass of hydrogen is 1.0079g and multiplying by the two hydrogen atoms is equal to 2.0158g.
What is Oxygen (O2) is an example of?
The molar mass of any gas in liters is 22.4 For example The molar mass of O2 and O are both 22.4 since gas is compressible.
