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14c. c. What is the value of Kc at the given temperature? 4.60 x 10-8 2.96 x 10-8 1.78 x 10-8 8.80 x 10-9 5.40 x 10-8

14c. c. What is the value of Kc at the given temperature? 4.60 x 10-8 2.96 x 10-8 1.78 x 10-8 8.80 x 10-9 5.40 x 10-8

Chemistry for Engineering Students
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 12.41PAE: Because calcium carbonate is a sink for CO32- in a lake, the student in Exercise 12.39 decides to go...
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14c. c. What is the value of Kc at the given temperature? O 4.60 x 10-8 O 2.96 × 10-8 O 1.78 x 10-8 O 8.80 x 10-9 O 5.40 x 10-8
Transcribed Image Text:14c. c. What is the value of Kc at the given temperature? O 4.60 x 10-8 O 2.96 × 10-8 O 1.78 x 10-8 O 8.80 x 10-9 O 5.40 x 10-8
14a. 14. A 50.0 g sample of ammonium carbamate, NH4(NH2CO2), was placed in an evacuated 0.300 L flask and kept at 25°C. At equilibrium, 21.7 mg of CO2 was present. The decomposition of ammonium carbamate into ammonia, NH3, and carbon dioxide, CO2 is: NH:(NH2CO2)(s) ² 2NH3(g) + CO2G) (MM of NH«(NH2CO2) = 78.07 g/mol; NH3 = 17.031 g/mol; CO2 = 44.01 g/mol) %3D a. What is the equilibrium concentration of CO2? O 7.23 x 10-2 M O 3.79 x 10-³ M O 4.25 x 10-³ M O 2.13 ×10-ª M 1.64 x10-3 M 14b. b. What is the equilibrium concentration of NH3? 9.27 ×10-3 M O 3.29 x 10-3 M O 8.22 ×10~4 M O 1.64 x 10-3 M O 4.25 x 10-3 M
Transcribed Image Text:14a. 14. A 50.0 g sample of ammonium carbamate, NH4(NH2CO2), was placed in an evacuated 0.300 L flask and kept at 25°C. At equilibrium, 21.7 mg of CO2 was present. The decomposition of ammonium carbamate into ammonia, NH3, and carbon dioxide, CO2 is: NH:(NH2CO2)(s) ² 2NH3(g) + CO2G) (MM of NH«(NH2CO2) = 78.07 g/mol; NH3 = 17.031 g/mol; CO2 = 44.01 g/mol) %3D a. What is the equilibrium concentration of CO2? O 7.23 x 10-2 M O 3.79 x 10-³ M O 4.25 x 10-³ M O 2.13 ×10-ª M 1.64 x10-3 M 14b. b. What is the equilibrium concentration of NH3? 9.27 ×10-3 M O 3.29 x 10-3 M O 8.22 ×10~4 M O 1.64 x 10-3 M O 4.25 x 10-3 M
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