A gas mixture contains 50% helium and 50% methane by volume. What is the percent by \ weight of methane in the mixture?

The partial pressure of helium is 39 kPa in a mixture of helium, oxygen, and methane gases. If the total pressure is 149 kPa and the partial pressure of oxygen is 49.6 kPa, what is the partial pressure of the methane gas?

What is the density of a mixture of 90% air (density air 1.20 kg/m3) and 10% helium (density of 0.180 kg/m3)?

A mixture of 1.41 g of oxygen and 1.66 g of helium has a total pressure of 4.34 atm. What is the partial pressure of the He gas?

A gas chamber of 100L consists of 60% oxygen and 40% nitrogen. Some amount of gas was removed from chamber and nitrogen was added such that the nitrogen % becomes 70.What amount of gas was removed?50L20L25L75L

Chemistry I16) A 0.10-L container holds 3.0 x 10^20 molecules of H2 at 100 kPa and 0C. If the volume of a hydrogen molecule is 6.7 x 10^-24 mL, what percentage of the volume of the gas is occupied by its molecules? 3.0 x 10^-1 % 2.0 x 10^-3 % 3.0 x 10^-3 % 2.0 x 10^-1 %Previous Question Next QuestionDo not use the 'Forward' or 'Back' button on your browser.