Molarity Practice Problems

1) How many grams of potassium carbonate are needed to make 200 mL of a 2.5 M solution?

 

 

 

 

2) How many liters of 4 M solution can be made using 100 grams of lithium bromide?

 

 

 

 

3) What is the concentration of a 450 mL solution that contains 200 grams of iron (II) chloride?

 

 

 

 

4) How many grams of ammonium sulfate are needed to make a 0.25 M solution at a concentration of 6 M?

 

 

 

 

5) What is the concentration of a solution that has a volume of 2.5 L and contains 660 grams of calcium phosphate?

 

 

 

 

6) How many grams of copper (II) fluoride are needed to make 6.7 liters of a 1.2 M solution?

7) How many liters of 0.88 M solution can be made with 25.5 grams of lithium fluoride?

 

 

 

 

8) What is the concentration of a solution that with a volume of 660 that contains 33.4 grams of aluminum acetate?

 

 

 

 

9) How many liters of 0.75 M solution can be made using 75 grams of lead (II) oxide?

 

 

 

 

10) How many grams of manganese (IV) oxide are needed to make a 5.6 liters of a 2.1 M solution?

 

 

 

 

11) What is the concentration of a solution with a volume of 9 mL that contains 2 grams of iron (III) hydroxide?

 

 

 

 

12) How many liters of 3.4 M solution can be made using 78 grams of isopropanol (C3H8O)?

 

 

 

 

13) What is the concentration of a solution with a volume of 3.3 mL that contains 12 grams of ammonium sulfite?

Molarity Practice Problems Answer Key

1) How many grams of potassium carbonate are needed to make 200 mL of a 2.5 M solution? 69.1 grams

2) How many liters of water are needed to make a 4 M solution using 100 grams of lithium bromide? 3.47 L

3) What is the concentration of a solution that contains 450 mL of water and 200 grams of iron (II) chloride? 3.51 M

4) How many grams of ammonium sulfate are needed to make a 0.25 M solution at a concentration of 6 M? 171.2 grams

5) What is the concentration of a solution that contains 2.5 L of solvent and 660 grams of calcium phosphate? 0.85 M

6) How many grams of copper (II) fluoride are needed to make 6.7 liters of a 1.2 M solution? 1081.4 grams

7) How many liters of solvent are required to make a 0.88 M solution using 25.5 grams of lithium fluoride? 1.11 L

8) What is the concentration of a solution that contains 660 mL of solvent and 33.4 grams of aluminum acetate? 0.25 M

9) How many liters of water are needed to make a 0.75 M solution using 75 grams of lead (II) oxide? 12.6 grams

10) How many grams of manganese (IV) oxide are needed to make a 5.6 liters of a 2.1 M solution? 1021.9 grams

11) What is the concentration of a solution that contains 9 mL of solvent and 2 grams of iron (III) hydroxide? 2.08 M

12) How many liters of water are required to make a 3.4 M solution using 78 grams of isopropanol (C3H8O)? 0.41 L

13) What is the concentration of a solution containing 3.3 mL of solvent and 12 grams of ammonium sulfite? 31.3 M