In a sample of sodium carbonate some sodium sulphate is also mixed. 1.25 g of
Channel: Doubtnut
Date: 2020-03-29

In a sample of sodium carbonate some sodium sulphate is also mixed. 1.25 g of this sample is dissolved and the volume made up to 250 mL. 25 mL of this solution neutralises 20 mL of `(N)/(10)` sulphuric acid. Calculate the percentage of sodium carbonate in the sample.