An Aqueous solution labelled 20 per cent (w/w) NaOH has a density of 1.25 g/ml.Choose the correct statement:(a) Weight of solution per 100 ml is 100g.(b) 20g solute present in 100 g solvent.(c) 25 g solute is present in 100 g solution(d) 25 g solute is present in 80 g solution.

An Aqueous solution labelled 20 per cent (w/w) NaOH has a density of 1.25 g/ml.

Ans- (b) 20g solute present in 100 g solvent.

Explanation- 20 % (w/w) NaOH means that 20 g of solute is present 100 g of solution. 

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Updated on: 10-Oct-2022

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