Question

calculate the amount of glucose required to prepare 250 grams of 5% solution of glucose by mass

Answer 1

Solution of glucose=250 g
Concentration=5%
Amount of glucose required=x

concentration=amount of glucose/solution of glucose * 100
5%=x/250 * 100
x=5 * 250/100
x=12.5 g

Answer 2

solution of glucose=250g
concentration=5%
amount of glucose required be x

concentration= amount of glucose/amount of solution *100
5=x/250 * 100
x=5 * 250/100
x=12.5g