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Please answer these questions on your Page 11 (a) In a 20.0 L steel container, we have only 88.8 g of CO₂(g), 66.6 g of N₂(g), and 99.9 g of an unknown gas. The temperature is 25.0°C and the total pressure is 7.77 atm. What is the molar mass of the unknown gas? The molar masses of C, N, and O are 12.01, 14.01, and 16.00 g/mol.

Please answer these questions on your Page 11 (a) In a 20.0 L steel container, we have only 88.8 g of CO₂(g), 66.6 g of N₂(g), and 99.9 g of an unknown gas. The temperature is 25.0°C and the total pressure is 7.77 atm. What is the molar mass of the unknown gas? The molar masses of C, N, and O are 12.01, 14.01, and 16.00 g/mol.

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter10: Gases And Their Properties
Section: Chapter Questions
Problem 103IL: Many nitrate salts can be decomposed by heating. For example, blue, anhydrous copper(II) nitrate...
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Please answer these questions on your Page 11 (a) In a 20.0 L steel container, we have only 88.8 g of CO₂(g), 66.6 g of N₂(g), and 99.9 g of an unknown gas. The temperature is 25.0°C and the total pressure is 7.77 atm. What is the molar mass of the unknown gas? The molar masses of C, N, and O are 12.01, 14.01, and 16.00 g/mol. (b) HA is a weak acid. We mix 2.000 L of a 0.555 M solution of HA with 1.000 L of a 0.333 M solution of NaOH. The pH of the solution produced (with a total volume of 3.000 L) is 3.88. What is the value of the dissociation constant, K₁, for this weak acid HA? The temperature is 25.0°C.
Transcribed Image Text:Please answer these questions on your Page 11 (a) In a 20.0 L steel container, we have only 88.8 g of CO₂(g), 66.6 g of N₂(g), and 99.9 g of an unknown gas. The temperature is 25.0°C and the total pressure is 7.77 atm. What is the molar mass of the unknown gas? The molar masses of C, N, and O are 12.01, 14.01, and 16.00 g/mol. (b) HA is a weak acid. We mix 2.000 L of a 0.555 M solution of HA with 1.000 L of a 0.333 M solution of NaOH. The pH of the solution produced (with a total volume of 3.000 L) is 3.88. What is the value of the dissociation constant, K₁, for this weak acid HA? The temperature is 25.0°C.
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