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Hydrogen iodide gas decomposes into hydrogen gas and iodine gas at 453°C. If a 2.00 L flask is filled with 0.200 mol of hydrogen iodide gas, 0.156 mol hydrogen iodide remains at equilibrium. What is the equilibrium constant, Kc, for the reaction at this temperature? (Be very careful with sig figs, note how close some of the possible answers are.) 2 HI(g) = H₂ (g) + 12 (g) 0.022 0.020 0.0062 0.019 0.018

Hydrogen iodide gas decomposes into hydrogen gas and iodine gas at 453°C. If a 2.00 L flask is filled with 0.200 mol of hydrogen iodide gas, 0.156 mol hydrogen iodide remains at equilibrium. What is the equilibrium constant, Kc, for the reaction at this temperature? (Be very careful with sig figs, note how close some of the possible answers are.) 2 HI(g) = H₂ (g) + 12 (g) 0.022 0.020 0.0062 0.019 0.018

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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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### Determining the Equilibrium Constant for the Decomposition of Hydrogen Iodide Hydrogen iodide gas (HI) decomposes into hydrogen gas (H₂) and iodine gas (I₂) at 453°C. If a 2.00 L flask is filled with 0.200 moles of hydrogen iodide gas and 0.156 moles of hydrogen iodide remain at equilibrium, what is the equilibrium constant, Kc, for the reaction at this temperature? (Be very careful with significant figures, note how close some of the possible answers are.) The balanced chemical equation for the reaction is: \[ 2 \text{HI} (g) \rightleftharpoons \text{H}_2 (g) + \text{I}_2 (g) \] #### Possible Answers (Select one of the options below): - 0.022 - 0.020 - 0.0062 - **0.019** - 0.018
Transcribed Image Text:### Determining the Equilibrium Constant for the Decomposition of Hydrogen Iodide Hydrogen iodide gas (HI) decomposes into hydrogen gas (H₂) and iodine gas (I₂) at 453°C. If a 2.00 L flask is filled with 0.200 moles of hydrogen iodide gas and 0.156 moles of hydrogen iodide remain at equilibrium, what is the equilibrium constant, Kc, for the reaction at this temperature? (Be very careful with significant figures, note how close some of the possible answers are.) The balanced chemical equation for the reaction is: \[ 2 \text{HI} (g) \rightleftharpoons \text{H}_2 (g) + \text{I}_2 (g) \] #### Possible Answers (Select one of the options below): - 0.022 - 0.020 - 0.0062 - **0.019** - 0.018
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