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Topic: Oxidation-Reduction Titration Question  (Read 4653 times)

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rocket99

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Oxidation-Reduction Titration Question
« on: September 28, 2005, 12:36:42 AM »
Ok here goes, I'm basically looking for the products and the net ionic equation for this titration.  
25mL of .01M sodium bisulfite and 5mL of 6M sulfuric acid are added to a beaker.  Then you titrate by adding .01M of potassium permanganate.  You also know potassium has an oxidation state of +7 and the sulfur in sodium bisulfite changes its oxidation state from +4 to +6.
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Re:Oxidation-Reduction Titration Question
« Reply #1 on: September 28, 2005, 03:25:53 AM »
Ok here goes, I'm basically looking for the products and the net ionic equation for this titration.  
25mL of .01M sodium bisulfite and 5mL of 6M sulfuric acid are added to a beaker.  Then you titrate by adding .01M of potassium permanganate.  You also know potassium has an oxidation state of +7 and the sulfur in sodium bisulfite changes its oxidation state from +4 to +6.

+7 is oxidation state of mangan, not potassium.

Permanganate in acidic solutions gets reduced to Mn2+.

You have every information needed for both half reactions, so try to write them down.
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