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ngineer is studying the following reaction: HCN (aq) + NH3(aq) → CN (aq) + NH(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.1. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. A chem reaction vessel A B с compound HCN NH3 CN NH4 HCN NH3 CN NHA HCN NH3 CN ΝΗ, concentration 0.28 M 0.12 M 1.05 M 0.94 M 0.67 M 0.51 M 0.66 M 0.55 M 0.31 M 0.15 M 1.02 M 0.91 M expected change in concentration ↑ increase O decrease ↓ Ot increase ↑ increase Ot increase ↑ increase Ot increase Ot increase ↑ increase ↑ increase ↑ increase ↑ increase O † increase ↑ O decrease ↓ O decrease ↓ Odecrease O decrease ↓ O decrease ↓ O decrease Odecrease Odecrease O decrease ↓ Odecrease O decrease O (no change) (no change) O(no change) (no change) O(no change) O(no change) O(no change) (no change) (no change) O(no change) O(no change) O(no change)

ngineer is studying the following reaction: HCN (aq) + NH3(aq) → CN (aq) + NH(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.1. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. A chem reaction vessel A B с compound HCN NH3 CN NH4 HCN NH3 CN NHA HCN NH3 CN ΝΗ, concentration 0.28 M 0.12 M 1.05 M 0.94 M 0.67 M 0.51 M 0.66 M 0.55 M 0.31 M 0.15 M 1.02 M 0.91 M expected change in concentration ↑ increase O decrease ↓ Ot increase ↑ increase Ot increase ↑ increase Ot increase Ot increase ↑ increase ↑ increase ↑ increase ↑ increase O † increase ↑ O decrease ↓ O decrease ↓ Odecrease O decrease ↓ O decrease ↓ O decrease Odecrease Odecrease O decrease ↓ Odecrease O decrease O (no change) (no change) O(no change) (no change) O(no change) O(no change) O(no change) (no change) (no change) O(no change) O(no change) O(no change)

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter12: Chemical Equilibrium
Section: Chapter Questions
Problem 87QRT
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A chem ngineer is studying the following reaction: + HCN(aq) + NH3(aq) → CN¯(aq)+NH (aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.1. C The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction vessel A B C compound HCN NH3 CN NH4 HCN NH3 CN NH₁ HCN NH₂ CN NHA 4 concentration 0.28 M 0.12 M 1.05 M 0.94 M 0.67 M 0.51 M 0.66 M 0.55 M 0.31 M 0.15 M 1.02 M 0.91 M expected change in concentration ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↓ decrease ↓decrease ↓ decrease 888888 ↓decrease ↓ decrease ↓decrease ↓ decrease ↓ decrease ↓decrease ↓decrease decrease ↓ decrease (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change)
Transcribed Image Text:A chem ngineer is studying the following reaction: + HCN(aq) + NH3(aq) → CN¯(aq)+NH (aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.1. C The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction vessel A B C compound HCN NH3 CN NH4 HCN NH3 CN NH₁ HCN NH₂ CN NHA 4 concentration 0.28 M 0.12 M 1.05 M 0.94 M 0.67 M 0.51 M 0.66 M 0.55 M 0.31 M 0.15 M 1.02 M 0.91 M expected change in concentration ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↓ decrease ↓decrease ↓ decrease 888888 ↓decrease ↓ decrease ↓decrease ↓ decrease ↓ decrease ↓decrease ↓decrease decrease ↓ decrease (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change)
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Try Again Your answer is incorrect. • reaction vessel B: Your answer is incorrect. A chemical engineer is studying the following reaction: HCN (aq) + NH3(aq) → CN¯(aq)+NH(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.1. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction vessel A compound HCN ΝΗ, CN NH₁ concentration 0.28 M 0.12 M 1.05 M 0.94 M expected change in concentration ↑ increase ↑ increase ↑ increase ↓ decrease ↓decrease ↓ decrease ↑ increase O decrease (no change) (no change) (no change) (no change)
Transcribed Image Text:Try Again Your answer is incorrect. • reaction vessel B: Your answer is incorrect. A chemical engineer is studying the following reaction: HCN (aq) + NH3(aq) → CN¯(aq)+NH(aq) At the temperature the engineer picks, the equilibrium constant K for this reaction is 1.1. The engineer charges ("fills") four reaction vessels with hydrogen cyanide and ammonia, and lets the reaction begin. He then measures the composition of the mixture inside each vessel from time to time. His first set of measurements are shown in the table below. Predict the changes in the compositions the engineer should expect next time he measures the compositions. reaction vessel A compound HCN ΝΗ, CN NH₁ concentration 0.28 M 0.12 M 1.05 M 0.94 M expected change in concentration ↑ increase ↑ increase ↑ increase ↓ decrease ↓decrease ↓ decrease ↑ increase O decrease (no change) (no change) (no change) (no change)
reaction vessel A B C compound HCN NH₂ CN NH₁ HCN NH3 CN NH4 HCN NH3 CN NH₁ 4 concentration 0.28 M 0.12 M 1.05 M 0.94 M 0.67 M 0.51 M 0.66 M 0.55 M 0.31 M 0.15 M 1.02 M 0.91 M expected change in concentration ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↓ decrease ↓decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease decrease ↓ decrease ↓ decrease ↓decrease ↓decrease ↓decrease (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change)
Transcribed Image Text:reaction vessel A B C compound HCN NH₂ CN NH₁ HCN NH3 CN NH4 HCN NH3 CN NH₁ 4 concentration 0.28 M 0.12 M 1.05 M 0.94 M 0.67 M 0.51 M 0.66 M 0.55 M 0.31 M 0.15 M 1.02 M 0.91 M expected change in concentration ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↑ increase ↓ decrease ↓decrease ↓ decrease ↓ decrease ↓ decrease ↓ decrease decrease ↓ decrease ↓ decrease ↓decrease ↓decrease ↓decrease (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change) (no change)
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