Multiple Choice
Which of the following correctly states Gay-Lussac's law?
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7. Gases
Gas Stoichiometry
Multiple Choice
At standard temperature and pressure (STP), which of the following samples occupies the greatest volume?
A
0.02 mol of O_2
B
1 mol of N_2
C
2 mol of H_2
D
0.1 mol of Cl_2
Verified step by step guidance1
Recall that at standard temperature and pressure (STP), one mole of any ideal gas occupies the same volume, approximately 22.4 liters. This is a key concept known as Avogadro's law.
Identify the number of moles for each gas sample given: 0.02 mol of O_2, 1 mol of N_2, 2 mol of H_2, and 0.1 mol of Cl_2.
Use the relationship between moles and volume at STP: \(V = n \times 22.4\, \text{L}\), where \(n\) is the number of moles.
Calculate the volume for each gas by multiplying the number of moles by 22.4 L/mol (without performing the final multiplication, just set up the expressions):
Compare the volumes obtained for each gas sample to determine which one occupies the greatest volume.
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