Chemistry

Question Analysis
This question involves the mole fraction extension of Dalton’s Law of Partial Pressures. The main focus is on calculating the partial pressure of a specific gas using its mole fraction and the total pressure of the mixture.

Key Concept Explanation
Dalton’s Law can be expanded using mole fraction ( )—the ratio of the moles of one gas to the total moles of the mixture. The formula for partial pressure is:

where

= moles of gas , = total moles of the mixture, 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:

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