State a mixture of sodium sulfate

Reference no: EM13170394

K2Cr2O7 was used to titrate a sample known to contain a mixture of sodium sulfate (Na2C2O4) and sodium oxalate (K2C2O4). The dichromate does not react with sodium sulfate. 0.2487 g of the mixture was dissolved in dilute acid and titrated with the potassium dichromate solution to an endpoint at 12.61 mL. Calculate the percent by mass of sodium oxalate in the unknown mixture.

Reference no: EM13170394

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