There
are a number of ways to express concentration of a solution. This includes
molarity. Molarity is expressed as the number of moles of solute per volume of
the solution. We do as follows:
11.2 g Ca(NO3)2 in 175 mL of solution
Molarity = 11.2 g Ca (NO3)2 (1 mol / 164.09) / .175 L solution
Molarity = 0.390 M
