Question

chapter 5 - gases examination
arted: nov 23 at 9:31pm
quiz instructions
e fifth exam. this is an examination on the material in the gases chapter of the text.
question 19 4 pts
oxygen and nitrogen are contained in a sample. the mole fraction of oxygen in the container is 0.32 and the total pressure in the container is 1 atm. what is the mole fraction of nitrogen?

Explanation:

Step1: Recall mole fraction sum rule

The sum of mole fractions of all components in a mixture is 1. Let \( x_{O_2} \) be the mole fraction of oxygen and \( x_{N_2} \) be the mole fraction of nitrogen. So, \( x_{O_2}+x_{N_2} = 1 \).

Step2: Solve for nitrogen's mole fraction

We know \( x_{O_2}=0.32 \). Substitute into the equation: \( x_{N_2}=1 - x_{O_2} \).
\( x_{N_2}=1 - 0.32 = 0.68 \).

Answer:

0.68