Determine the amount of sucrose in each solution.

(a) 48 g of a solution containing 3.7% sucrose by mass

(b) 103 mg of a solution containing 10.2% sucrose by mass

(c) 3.2 kg of a solution containing 14.3% sucrose by mass

Step-1

Amount of sucrose present is,

(a) 48 g of a solution containing 3.7% sucrose by mass

Mass percent is the number of grams of solute per 100 g of solution. So a solution with 3.7 % of concentration of sucrose by mass contains 3.7 g of sucrose 100 g of solution.

Hence 48g of solution contains,

48 g solution =1.8 g sucrose.

Step-2

Amount of sucrose present is,

(b) 103 mg of a solution containing 10.2% sucrose by mass

103 mg = 0.103 gm

A solution with 10.2 % of concentration of sucrose by mass contains 10.2g of sucrose of 100 g of solution.

Hence 0.103g of solution contains,