Answer:
Partial pressure of Kr → 214.06 mmHg
Partial pressure of CH₄ → 560.5 mmHg
Explanation:
To determine partial pressure we can work with mole fraction.
Mole fraction = moles of gas / Total gas = Partial pressure gas /Total pressure
Let's determine the moles of each compound (mass / molar mass)
4.77 g / 83.80 g/mol = 0.0569 moles of Kr
2.38 g / 16 g/mol = 0.149 moles of CH₄
Total moles = 0.0569 + 0.149 → 0.206
Partial pressure of Kr → (0.0569/0.206) . 775 mm Hg = 214.06 mmHg
Partial pressure of CH₄ → (0.149/0.206) . 775 mm Hg = 560.5 mmHg
