Question

Solve the following numerical:- a.Calculate the amount of water required to prepare 500g of 2.5% solution of sugar by mass and by volume. b.1.25 g of sugar is dissolved in 47.5g of water. Calculate its percent by mass.

Answer 1

Explanation:

Mass percent = mass of solute / massof solution . Hence 487.5 g of water is required to prepare 500g of 2.5 % sugar solution. Assume that 2.5% sugar means percentage by weight. In 500g of sugar solution , there are 500*2.5/100=12.5 grams of sugar.

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