DOL REC: Dilution

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

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

• 0.1 M

• 0.2 M

• 0.5 M

• 1.0 M

A dilution is when

• solute is added to the volume of solution

• water is added to the volume of solution

• solute is removed from the volume of solution

• water is removed from the volume of solution

What is the molarity of a solution made by diluting 26.5 mL of 6.00M HNO₃ to a volume of 250. mL?

• 15.9 M
• 0.636 M
• 0.642 M
• 1.59 M

As we dilute a solution.....

• The volume increases and the molarity (M) increases

• The volume increases and the molarity (M) decreases

• The volume decreases and the molarity (M) increases

• The volume decreases and the molarity (M) decreases