calculate the percentage of Nacl in the caustic soda

Posted on 2014-03-08 10:33:00 in Chemistry by PING_G

A sample of caustic soda (NaOH)supplied to soap manufacturer was found to be adulterated with NaCl. 5 g of the impure sample of caustic soda was dissolved in water and the solution made to 1liter.25ml of this solution required 20ml of 0.1 N HCI for complete titration. calculate the percentage of Nacl in the caustic soda.

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