Ascorbic acid (0.010 0 M) was added to 10.0 mL of 0.020 0 M Fe 3+ in
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Ascorbic acid (0.010 0 M) was added to 10.0 mL of 0.020 0 M Fe3+ in a solution buffered to pH 0.30, and the potential was monitored with Pt and saturated Ag | AgCl electrodes.
Dehydroascorbic acid + 2H+ + 2e- ⇌ ascorbic acid + H2O E° = 0.390 V
(a) Write a balanced equation for the titration reaction.
(b) Using E° = 0.767 V for the Fe3+ | Fe2+ couple, calculate the cell voltage when 5.0, 10.0, and 15.0 mL of ascorbic acid have been added.
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a b 2Fe ascorbic acid HO 2Fe2 dehydroascorbic acid 2H The equivalence volume is 100 mL At 50 ml half ...View the full answer
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