Question

In a mixture of 1.80 mol of gas 0.70 mol are nitrogen(N2) molecules. What is the mole fraction of N2 in this mixture?

Answer 1

The mole fraction of N2 in the mixture is approximately 0.389.

Step-by-step explanation:

The mole fraction of N2 in the mixture can be calculated by dividing the number of moles of N2 by the total number of moles in the mixture. In this case, there are 1.80 mol of gases in total and 0.70 mol are N2 molecules. Therefore, the mole fraction of N2 is:

Mole fraction of N2 = (moles of N2)/(total moles)

= (0.70 mol)/(1.80 mol)

≈ 0.389.