Homework Help: Analytical Chemistry

Posted by Amie on Friday, April 15, 2011 at 7:16am.

Hi.
We performed an experiment on UV-Vis Spectrometry, by testing the absorbance of KMnO4 and KCr2O7 solutions at different concentrations. We prepared the dichromate solutions with dilute sulfuric acid. Why didn't we use water, what is the purpose of sulfuric acid?

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