Question

A sample of french fried potatoes weighing 100.0 g was extracted with the volatile

organic solvent hexane. After separation and evaporation of the hexane, 6.25 g of

cooking oil was recovered.

Answer 1

Mass of sample of french fries = 100 g

Mass of cooking oil recovered= 6.25 g

Mass percent of cooking oil recovered = $\frac{6.25}{100}×100=6.25$ %

Mass percent is 6.25 %