A 0.50 mole sample of gas is measured at standard temperature and pressure. What is its volume at STP?

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Multiple Choice

A 0.50 mole sample of gas is measured at standard temperature and pressure. What is its volume at STP?

At fixed temperature and pressure, a gas’s volume is proportional to the amount of gas present. At STP, one mole of an ideal gas occupies 22.4 liters. Therefore, a 0.50 mole sample has a volume of 0.50 × 22.4 L = 11.2 L. This relies on the ideal gas assumption, which is good for STP conditions.

At fixed temperature and pressure, a gas’s volume is proportional to the amount of gas present. At STP, one mole of an ideal gas occupies 22.4 liters. Therefore, a 0.50 mole sample has a volume of 0.50 × 22.4 L = 11.2 L. This relies on the ideal gas assumption, which is good for STP conditions.

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