18.3 Balancing equations using Half-reactions in acidic or basic environments. Read pages 730-750. METHOD 1 – USING THE TABLE OF STANDARD REDUCTION POTENTIALS. identify reactants and products for possible half reactions. Find half reaction equations from page 11 (data booklet) that match
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
Read pages 730-750
Find half reactions:
IO3-(aq) → I2 (s)
Al (s) → Al 3+(aq)
try to find a reduction and an oxidation half reaction that matches on page 11
2IO3-(aq)+ 12H+ (aq) + 10 e-→ I2 (s) + 6H2O (aq)
Al (s) → Al 3+(aq) + 3 e-
Multiply by 3 matches on page 11
6IO3-(aq)+ 36H+ (aq) + 30 e-→ 3I2 (s) + 18H2O (aq)
Multiply by 10
10Al (s) → 10Al 3+(aq) + 30 e-
Finally, add them together and inspect.
6IO3-(aq)+ 36H+ (aq) + 10Al (s) → 3I2 (s) + 18H2O (aq) +10Al 3+(aq)
Write the balanced oxidation-reduction equation for: