Question

how many grams of solute should be added in 100g to get a solution of density 1.2g/ml and strength 5%w/v?​

Answer 1

Answer:

5% (w/v), by definition, means 5 grams of solute per 100 grams of solution. Since the density is 1.2 g/ml, you can find the volume of 100 grams of solution. 100 g solution x 1 ml/1.2 g = 83.33 mls. Hence...

83.33 mls x 5 g/100 mls = 4.17 g solute needed.

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