11/28 2 Exercise 10.65 Enhanced-with Feedback Exercise 10.65-Enhanced- with Feed

Question

11/28 2 Exercise 10.65 Enhanced-with Feedback Exercise 10.65-Enhanced- with Feedback X 0.39 A gas miature contains 1.29 g N2 and 0.94 g O2 in a 1.51-I container at 10 C You may wan to reference (LI pages 433-439) Section 10.7 while completing this problem Submit My Answers Give Up Correct The sum of all mole fractions for gases in a gas mixture is equal to Part C Caloulate the partial pressure of N Express your answer using two significant figures atm Submit My Answers Give Up Incorrect; Try Again; 2 attempts remaining Part D Calculate the partial pressure of O Express your answer using two significant figures atm Submit My Answers Give Up

Explanation / Answer

Volume of the gas = 0.945 L

Temperature of the gas = 25 + 273.15 = 298.15 K

Pressure of the gas = Total pressure - aqueous tension

= 758 - 23.78 = 734.22 mmHg * 1 atm / 760 mmHg = 0.966 atm

Gas constant = 0.0821 L.atm.K-1.mlo-1

Molar mass of H2 gas = 2 g/mol

Ideal gas equation,

P V = n R T
P V = (mass / molar mass) * R * T

Mass of H2 gas = P * V * Molar mass / ( R * T )

Mass of H2 gas = 0.966 * 0.945 * 2 / (0.0821 * 298.15)

Mass of H2 gas = 0.0746 g.

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