A mixture of He, Ar and Xe has a total pressure of 2.70atm. The partial pressure of He is 0.450atm as well as the partial pressure of Ar is 0.200atm. Explain what is the partial pressure of Xe?
Express your answer to three important figures and include the appropriate units.
A volume of 18.0 L contains a mixture of 0.250 mole N2 , 0.250 mole O2, and an unknown quantity of He. The temperature of the mixture is 0?C , as well as the total pressure is 1.00 atm . Explain how many grams of helium are present in the gas mixture?
Express your answer to three important figures and include the appropriate units.