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Sample exercises  (21) use Dalton's Law

Sample exercises  (21) use Dalton's Law

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Sample exercises 

(21) use Dalton's Law

(23) use molar mix of gas mixture

Exercise 21 A 10 dm flask contains 0.200 mole of methane, 0.300 mole of hydrogen and 0.400 mole of nitrogen at 25°C. (a) What is the total pressure inside the flask? (b) What is the partial pressure of each gas in the mixture? [Answer: 2.23 kPa; 0.495 kPa; 0.744 kPa; 0.992 kPa]
Transcribed Image Text:Exercise 21 A 10 dm flask contains 0.200 mole of methane, 0.300 mole of hydrogen and 0.400 mole of nitrogen at 25°C. (a) What is the total pressure inside the flask? (b) What is the partial pressure of each gas in the mixture? [Answer: 2.23 kPa; 0.495 kPa; 0.744 kPa; 0.992 kPa]
Exercise 23 A gas mixture is composed of 2.0 moles H2 and 1 mole N2. Calculate (a) the average molar mass of the gas mixture, and (b) the density of the gas mixture at 273.15 K and 1 atm. [ Answer: 19.42; 0.866]
Transcribed Image Text:Exercise 23 A gas mixture is composed of 2.0 moles H2 and 1 mole N2. Calculate (a) the average molar mass of the gas mixture, and (b) the density of the gas mixture at 273.15 K and 1 atm. [ Answer: 19.42; 0.866]
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