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For each of the following reactions, balance the chemical equation, calculate the emf, and calculate AG° at 298 K. (Use the smallest possible coefficients for H₂O(), H+ (aq), and HO (aq). These may be zero.) (a) In acidic solution copper(I) ion is oxidized to copper(II) ion by nitrate ion. Cu+ (aq) + NO3(aq) + H+ (aq) → Cu2+ (aq) NO(g) + emf AG⁰ emf (b) Aqueous iodide ion is oxidized to I2 (s) by Hg₂²+ (aq). I(aq) + Hg₂2+ (aq) + 1₂(s) AG⁰ V emf kJ AG⁰ V kJ (c) In basic solution Cr(OH)3(s) is oxidized to CrO42 (aq) by CIO (aq). Cr(OH)3(s) + CIO (aq) + OH(aq) → CrO4² (aq) V ← +H| kJ Hg() + H₂O(l) Cl(aq) + H₂O(l) H₂O(l)

For each of the following reactions, balance the chemical equation, calculate the emf, and calculate AG° at 298 K. (Use the smallest possible coefficients for H₂O(), H+ (aq), and HO (aq). These may be zero.) (a) In acidic solution copper(I) ion is oxidized to copper(II) ion by nitrate ion. Cu+ (aq) + NO3(aq) + H+ (aq) → Cu2+ (aq) NO(g) + emf AG⁰ emf (b) Aqueous iodide ion is oxidized to I2 (s) by Hg₂²+ (aq). I(aq) + Hg₂2+ (aq) + 1₂(s) AG⁰ V emf kJ AG⁰ V kJ (c) In basic solution Cr(OH)3(s) is oxidized to CrO42 (aq) by CIO (aq). Cr(OH)3(s) + CIO (aq) + OH(aq) → CrO4² (aq) V ← +H| kJ Hg() + H₂O(l) Cl(aq) + H₂O(l) H₂O(l)

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.140QP
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For each of the following reactions, balance the chemical equation, calculate the emf, and calculate AG° at 298 K. (Use the smallest possible coefficients for H₂O(/), H+ (aq), and HO (aq). These may be zero.) (a) In acidic solution copper(I) ion is oxidized to copper(II) ion by nitrate ion. Cu+ (aq) + NO3(aq) + H+ (aq) → Cu²+ (aq) NO(g) + emf AG⁰ emf (b) Aqueous iodide ion is oxidized to I₂(s) by Hg₂2+ (aq). I(aq) + Hg₂²+ (aq) + H+ → I₂(s) AGº V emf KJ AG⁰ V KJ (c) In basic solution Cr(OH)3(s) is oxidized to CrO4²- (aq) by CIO (aq). Cr(OH)3(s) + CIO (aq) + OH(aq) → CrO4²- (aq) V Hg(/) + kJ H₂O(1) Cl(aq) + H₂O(l) H₂O(l)
Transcribed Image Text:For each of the following reactions, balance the chemical equation, calculate the emf, and calculate AG° at 298 K. (Use the smallest possible coefficients for H₂O(/), H+ (aq), and HO (aq). These may be zero.) (a) In acidic solution copper(I) ion is oxidized to copper(II) ion by nitrate ion. Cu+ (aq) + NO3(aq) + H+ (aq) → Cu²+ (aq) NO(g) + emf AG⁰ emf (b) Aqueous iodide ion is oxidized to I₂(s) by Hg₂2+ (aq). I(aq) + Hg₂²+ (aq) + H+ → I₂(s) AGº V emf KJ AG⁰ V KJ (c) In basic solution Cr(OH)3(s) is oxidized to CrO4²- (aq) by CIO (aq). Cr(OH)3(s) + CIO (aq) + OH(aq) → CrO4²- (aq) V Hg(/) + kJ H₂O(1) Cl(aq) + H₂O(l) H₂O(l)
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