A sample of pure PCl5 was introduced into an evacuated vessel at 473 K. After equilibrium was reached, the concentration of PCl5 was found to be 0.5 x 10-1 mol L-1. If Kc is 8.3 x 10-3 what are the concentrations of PCl3 and Cl2 at equilibrium?
A 0.299 g sample of a gas was held in a 0.220 L container at 25.0°C and its pressure
was determined to be 0.757 atm. What is the molar mass of the gas?
A 2.00 L sample of gas originally at 25 °C and pressure of 400 torr is allowed to expand
to a volume of 5.00 L.
If the final pressure of gas is 585 torr, what is the final temperature in K?
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