Molar volume is the volume occupied by one mole of any gas at standard temperature and pressure (STP), which is 22.414 dm3. This volume is specific to ideal gases and allows for easy conversion between mass and volume of gases at STP.
How can the mass of a gas at STP be converted into its volume and vice versa?
By using the molar volume concept, we can convert the mass of a gas at STP into its volume and vice versa.
What is the molar volume of H2 at STP?
22.414 dm3 of H2 occupies the molar volume at STP..
Explain the relationship between the mass and volume of gases at STP.
Different gases have different masses but the same number of molecules in 22.414 dm3 at STP due to the ideality of gases.
How can the number of moles of an ideal gas at STP be calculated from a given volume?
The number of moles of an ideal gas at STP can be calculated by dividing the given volume by the molar volume of the gas at STP.
How does the molar volume concept aid in understanding the relationship between reactants and products in a chemical reaction?
Molar volume helps in determining the limiting reactant, theoretical yield, and the quantitative relationship between reactants and products in a balanced chemical equation.
What is the molar volume of a gas at standard temperature and pressure (STP)?
a) 24.5 dm3
b) 22.414 dm3
c) 20.5 dm3
d) 25.2 dm3
Answer: b) 22.414 dm3
Which gas law concept is related to the molar volume of gases?
a) Boyle's Law
b) Charles's Law
c) Avogadro's Law
d) Dalton's Law
Answer: c) Avogadro's Law
How many molecules of a gas are present in 1 mole at STP?
a) 6.02 x 10dm23 molecules
b) 5.5 x 10dm23 molecules
c) 7.0 x 10dm23 molecules
d) 6.5 x 10dm23 molecules
Answer: a) 6.02 x 10dm23 molecules
What is the volume occupied by 1 mole of CH4 at STP?
a) 24.5 dm3
b) 22.414 dm3
c) 20.5 dm3
d) 25.2 dm3
Answer: b) 22.414 dm3
Which factor determines the molar volume of a gas at STP?
a) Mass of the gas
b) Size of the molecules
c) Number of molecules
d) Pressure of the gas
Answer: c) Number of molecules