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What reaction occurs when sodium bisulfite solution is added to an experiment to destroy unreacted bromide?

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In an experiment, sodium bisulfite solution is added at the end in order to destroy the unreacted bromide. What reaction is occurring here? Is HSO3- acting as an oxidizing or reducing agent? Write a balanced equation as part of your answer.

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Solution Summary

Solution contains explanation and chemical equations for sodium bisulfie solution added.

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Sodium bisulfite is normally considered a reducing agent as it converts bromine (Br2) to bromide (Br-) according to the following reaction:

2NaHSO3 + 2Br2 = 2 NaBr + 2 SO3 + 2 ...

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