Chemistry

Question Analysis
This question involves converting gas masses to moles, calculating total moles of a three-component mixture, and applying the mole fraction form of Dalton’s Law of Partial Pressures. The main focus is on integrating stoichiometric mass-mole conversion with partial pressure calculation for a mixed-gas system.

Key Concept Explanation
For mass-based gas mixture problems, the core relationships are:
1. Moles calculation: (where = mass, = molar mass)
2. Mole fraction:
3. Dalton’s Law via mole fraction:
This method applies only to non-reacting ideal gas mixtures.

Step-by-Step Solution
1. Calculate moles of each gas:

Click "Show Answer" to reveal the answer and analysis