1. Molarity • Molarity is a measure of molar concentration
Molarity • Molarity is a measure of molar concentration. • Molarity equals moles over liters • 1 M = 1mol/L • The symbol M is read molar so “1 M HCl” is read “one molar hydrochloric acid”.

2. Sample problem #1 0. 0292 mol Cane sugar (sucrose)is dissolved in 0
Sample problem # mol Cane sugar (sucrose)is dissolved in L of water. What is the concentration of the sugar solution? Answer: M sucrose

3. Basic Molarity Step-by-step 1
Basic Molarity Step-by-step 1. If you are given grams, turn it into moles. 2. If you are given a volume in units other than liters, convert to liters. 3. Plug the numbers into the equation M=mol/L and solve.

4. Sample Problem #2 • A student prepared a solution by dissolving 1
Sample Problem #2 • A student prepared a solution by dissolving g of potassium nitrate, KNO3 in enough water to prepare mL of solution. What is the molarity of the solute? • Answer: M KNO3

5. Try this in your seat • Calculate the molarity of sodium chloride in a solution made by dissolving g NaCl in enough water to make mL of solution. • Answer: M NaCl