Chemistry

Question Analysis
This question involves the mole fraction application of Dalton’s Law of Partial Pressures. The main focus is on calculating the partial pressure of a specified gas in a three-component mixture using its mole fraction and the provided total pressure.

Key Concept Explanation
Dalton’s Law of Partial Pressures can be linked to mole fraction ( )—the proportion of a gas’s moles relative to the total moles of the mixture. The core formulas are:


where = moles of the target gas, = total moles of all gases in the mixture, = partial pressure of the target gas, and = total pressure of the mixture. This applies only to non-reacting ideal gases.

Step-by-Step Solution
1. Calculate the total moles of the gas mixture:

2. Calculate the mole fraction of :

Click "Show Answer" to reveal the answer and analysis