What is the mole fraction of carbon dioxide in a mixture consisting of equal masses of CO2 (MW=44) and neon (MW=20.2)?

What is the mole fraction of carbon dioxide in a mixture consisting of equal masses of CO2 (MW=44) and neon (MW=20.2)? Assume any arbitrary mass, such as 100 g, find the equivalent numbers of moles of each gas, and then substitute into the definition of mole fraction: nCO2 = (100 g) ÷ (44 g mol–1) = 2.3 mol.

The core elements are hydrogen and helium.

Explanation: