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In the analysis of a fungicide, C 7 H 15 S, a 2,000 g sample was dissolved in a sulfuric acid solution and titrated with

In the analysis of a fungicide, C7H15S, a 2,000 g sample was dissolved in a sulfuric acid solution and titrated with dichromate solution; the titre being 30,26 cm3. The dichromate was prepared by dissolving 1,2345 g of K2Cr2O7 in a 250 cm3 flask. Calculate the percentage purity of the sample.

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