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10 What is the mass percentage of Ar in a flask that contains 0.3 atm of N₂ and 0.7 atm of Ar? (Molar mass of N₂ - 28.01 g/mol; molar mass of Ar= 39.95 g/mol) 30% 54% 0000 70% 77%

10 What is the mass percentage of Ar in a flask that contains 0.3 atm of N₂ and 0.7 atm of Ar? (Molar mass of N₂ - 28.01 g/mol; molar mass of Ar= 39.95 g/mol) 30% 54% 0000 70% 77%

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Chemistry
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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
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10 What is the mass percentage of Ar in a flask that contains 0.3 atm of N₂ and 0.7 atm of Ar? (Molar mass of N₂ = 28.01 g/mol; molar mass of Ar = 39.95 g/mol) 30% 54% 70% 77%
Transcribed Image Text:10 What is the mass percentage of Ar in a flask that contains 0.3 atm of N₂ and 0.7 atm of Ar? (Molar mass of N₂ = 28.01 g/mol; molar mass of Ar = 39.95 g/mol) 30% 54% 70% 77%
What is the value of q when the reaction below is performed in a bomb calorimeter? HCl(aq) + 2Zn(s) → ZnCl₂(aq) + H₂(g) AH = -80.7 kJ positive q 9=0 negative q
Transcribed Image Text:What is the value of q when the reaction below is performed in a bomb calorimeter? HCl(aq) + 2Zn(s) → ZnCl₂(aq) + H₂(g) AH = -80.7 kJ positive q 9=0 negative q
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