Hydrogen chloride gas is shipped in a container under 5,100 mmHg of pressure that occupies 20.1 liters at 29°C. How many liters of gas would be produced at STP?

Question

Kaylin Ryan

Chemistry

19 February, 20:43

Hydrogen chloride gas is shipped in a container under 5,100 mmHg of pressure that occupies 20.1 liters at 29°C. How many liters of gas would be produced at STP?

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Raul Maynard · Answer 1

This problem is solved using the ideal gas equation. To simplify the problem, we must assume that the gas is ideal then proceed with the ideal gas equation. PV=nRT. First, get the number of moles of the gas. With R = 0.0821 L atm / mol K and 5100mmHg = 6.7atm. Plug in the given resulting to an answer n=5.4 moles.

At STP, regardless of the gas specie the molar volume is always 22.4L/mol. The final answer is then 22.4*5.4 = 121. L