Name ______________________________________ Period ________
MOLARITY WORKSHEET #1
For each of the following problems, use proper units and show ALL work:
1. If 10.7 grams of NH4Cl is dissolved in enough water to make 800 mL of solution, what will be
its molarity? (Answer: 0.25 mol/L).
2. Calculate the molarity of a solution prepared by dissolving 6.80 grams of AgNO3 in enough
water to make 2.50 liters of solution. (Answer: 0.016 mol/L).
3. How many moles of CaCl2 are required to prepare 2.00 liters of 0.700 M CaCl2? (Answer:
1.4 moles).
4. What mass, in grams, of CaCl2 will be required to prepare the above solution? (Answer:
155 grams).
5. How many grams of KNO3 will be required to prepare 800 mL of 1.40 M KNO3? (Answer:
113 grams).
