Practice Dilutions

Multiple Choice

If 2.5 L of a 4M solution of FeCl₃ is diluted to a volume of 6 L by the addition of water, what is the molarity of the diluted solution?

• 2.5 M

• 4.17 M

• 6.25 M

• 1.67 M

Multiple Choice

1.     If a chemist starts with 25 mL  of 6M HCl and prepares a new solution with a concentration of 0.5M, what with be the new volume?

• 200 mL

• 500 mL

• 300 mL

• 400 mL

Multiple Choice

A chemist dilutes 25 mL of a 2M solution to make 500 mL of new solution.  What is the molar concentration of the new solution?

• 0.1 M

• 0.2 M

• 0.5 M

• 1.0 M