Question

How many molecules of glucose are in a 2.0 mL of a 1.02 mM solution of glucose

Answer 1

One way of expressing concentration is by molarity. It is the amount of solute per unit volume of the solution. Usually, it takes the unit mol/L. The calculation for this problem is as follows:

1.02 mM = (1.02 mol / mL) (2.0 mL) = 2.04 mol

Thus, the solution has 2.04 mol of glucose.