A rigid container of oxygen gas has a pressure of 227 Kpa at a temperature of 450 K. What is its pressure at 200 K

Apump contains 0.5 l of air at 203 kpa.you draw back on the piston of the pump, expanding the volume until the pressure reads 50.8 kpa. what is the new volume of the air pump

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas

In the diagram here that represents the reaction, which reactant, a or b, is the limiting reagent?