Question

Write balanced half-reactions for the following redox reaction: H3AsO4(aq)+4H2O(l)+8I-(aq) ? AsH3(g)+8OH-(aq)+4I2(s) reduction: oxidation:

          Write balanced half-reactions for the following redox reaction:
H3AsO4(aq)+4H2O(l)+8I-(aq) ? AsH3(g)+8OH-(aq)+4I2(s)
reduction:
oxidation:

Added by Belen O.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Madhur L

07/09/2022

Step 1

For H3AsO4, arsenic (As) is in the +5 oxidation state. In AsH3, arsenic is in the -3 oxidation state. For iodine (I-), it starts in the -1 oxidation state and goes to 0 in I2. Show more…

Show all steps

Thanks for your feedback!

Write balanced half-reactions for the following redox reaction: H3AsO4(aq) + 4H2O(l) + 8I-(aq) → AsH3(g) + 8OH-(aq) + 4I2(s) Reduction: H3AsO4(aq) + 8H+(aq) + 8e- → AsH3(g) + 4H2O(l) Oxidation: 8I-(aq) → 4I2(s) + 8e-