Question

A glucose solution is 3.25% glucose by mass and has a density of 1.03 g/ml. what mass of glucose is contained in 58.2 ml of this solution?

Answer 1

The density is the mass per unit volume. It is calculated from the formula d = m/V.
d = density
m = mass
V = volume.
We have here density = 1.03 g/ml, volume = 58.2 ml.
m = d * V = 1.03 * 58.2 = 59.946 grams.
Since that glucose is only 3.25% of the mass of the solution.
Therefore mass of glucose = 3.25/100 * 59.946 = 1.948 grams.