Question

Rohan prepared a solution by dissolving 35 g of sodium chloride in 100 g of water. He added 10 g more sodium chloride to this solution and evaporated 20 g of water by heating. Radhika prepared another solution by dissolving 15 g of sodium chloride in 50 g of water and made the mass of solution 100 g. Mohan took 20 g of the final solution prepared by Rohan and 30 g from Radhika's solution. The concentration (w/w) of the solution prepared by Mohan will be

A. 26.8
B. 23.4
C. 32.4
D. 28.7​

Answer 1

Answer:

23.4 hope

Explanation:

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