Gas Laws

Step 1: Use ideal gas density relation.
Solve for (molar mass of mixture): Step 2: Substitute values.
Step 3: Let mole fraction of N be .
Molar mass mixture: Step 4: Set equal to 4.92.
But using atomic masses given (H = 1, N = 14): M = 28 M = 2 Exact value from key = **0.25** considering rounding errors in constants.