A gas container has a volume of 6.504 L. When filled with propane gas, C₃H₈, at 28.3 °C, the pressure is 486.3 torr. How much should the gas sample weigh?

Question

Quizplus · Accepted Answer

To find the weight of the gas, use the ideal gas law: PV = nRT. Convert pressure to atm (486.3 torr = 0.639 atm) and temperature to Kelvin (28.3°C = 301.45 K). R = 0.0821 L·atm/mol·K. Solve for n (moles of gas), then multiply by the molar mass of propane (44.1 g/mol) to find the weight.

A Gas Container Has a Volume of 6