Question

A solution contains 30 g of glucose, 20 g of salt in 500 ml of water. Calculate the mass percent of glucose and salt (density of water=1 g/ml).

Answer 1

Answer:

glucose= 60%

salt= 40%

Explanation:

mass %= mass of solute/mass of solution X 100%

mass % of glucose= 30/30+20 X 100

                                = 30/50 X 100

                                = 60%

mass % of salt= 20/30+20 X 100

                                = 20/50 X 100

                                = 40%

Answer 2

Answer:

explination is given below

Explanation:

The solution contain 30g glucose , 20 g salt and 500g water(density of water = 1g/ml so 500ml= 500g)

Total weight of solution by mass = 30g + 20g + 500 g = 550g

Mass % of glucose = 30/ 550 *100 = 5.45 %

Mass % of salt = 20 /550 *100 = 3.63%

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