Write a balanced half-reaction for the reduction of CrO 4 2–(aq) to Cr(OH) 3(s) in a basic solution. Write a balanced half-reaction for the reduction of CrO 4 2-(aq) to Cr(OH) 3(S) in a basic solution.А) CrO, (aq) +3 ОН (аq) + 3 е — Сr(ОН)3(s) + 2 Oz(g)CrO, (аq) + 3 н (аq) + 3 е- — Cr(ОН)3(9)(с) Сrо,(аq) +3 н (аq) — Сr(ОН)3(9) + 2 е-DCrog (aq) + 4 H-0()+ 3 е — Cr(ОH);(S) + 5 ОН (аq)E) CrOД (aq) +3 ОН (аq) — Cr(ОH)3(8) + 2 0-(g)

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balanced half-reaction

Chemistry: The Molecular Science

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ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter17: Electrochemistry And Its Applications

Section: Chapter Questions

Problem 11QRT

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Question

100%

Write a balanced half-reaction for the reduction of CrO ₄ ^2–(aq) to Cr(OH) ₃(s) in a basic solution.

Write a balanced half-reaction for the reduction of CrO 4 2-(aq) to Cr(OH) 3(S) in a basic solution.
А) CrO, (aq) +3 ОН (аq) + 3 е — Сr(ОН)3(s) + 2 Oz(g)
CrO, (аq) + 3 н (аq) + 3 е- — Cr(ОН)3(9)
(с) Сrо,(аq) +3 н (аq) — Сr(ОН)3(9) + 2 е-
D
Crog (aq) + 4 H-0()+ 3 е — Cr(ОH);(S) + 5 ОН (аq)
E) CrOД (aq) +3 ОН (аq) — Cr(ОH)3(8) + 2 0-(g)

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