Find the number of liters occupied by 3.0 g of nitrogen gas at STP.

Name: Find the number of liters occupied by 3.0 g of nitrogen gas at STP.
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Question

Quizplus · Accepted Answer

At STP (standard temperature and pressure), one mole of gas occupies 22.4 L. The molar mass of nitrogen gas is 28 g/mol. Therefore, 3.0 g of nitrogen gas is equal to 3.0/28 = 0.107 moles. Thus, at STP, the volume occupied by 0.107 moles of nitrogen gas is 0.107 x 22.4 = 2.39 L, which rounds to 2.4 L. Therefore, the best choice is C.

Find the Number of Liters Occupied by 3