Molarity Calculation Examples:
The dimensional analysis solution is shown for three sample problems.
Study how each problem is solved, understanding each step in the conversion process. When you understand the solution process, use your calculator to find the answer with the proper number of significant digits.
Note: In the first two examples, the problem gives a mass of solute in a volume of solution. This may be written as "mass over volume", the form needed for molarity.
Two fractions are needed: one to convert mass to moles and one to convert volume units to dm3.
1. What is the molarity of a liter of solution containing 100 g of copper (II) chloride?
2. Calculate the molarity of a solution containing 25 g AgNO3 in 100 ml of solution.