Molarity and Dilution Review

Molarity and Dilutions Review

By Kelsey Mullins

​Molarity

​What is the molarity of a 2.4 liter solution with 19 moles dissolved in it?

Multiple Choice

What is the molarity of a solution with 2.3 moles dissolved in 1.4 Liters?

• 3.22 M

• 0.61 M

• 1.20 M
• 1.64 M

How many moles are dissolved in a 0.94 L solution that has a concentration of 0.6 M?

Multiple Choice

How many moles are dissolved in a 0.5 L solution that has a concentration of 0.75 M?

• 0.375 moles
• 1.5 moles

• 0.67 moles

• 0.25 moles

What volume, in liters, is a 0.7 M solution containing 5 moles of solute?

Multiple Choice

What volume, in liters, is a 2 M solution containing 0.8 moles of solute?

• 0.2 L
• 0.6 L
• 0.4 L
• 2.5 L

​Dilutions

A chemist has 3 L of a 0.44 M solution. If he needs a concentration of 0.2 M, what will his new volume be?

A 0.9 M solution is diluted to a concentration of 0.7 M and a volume of 0.6 L. what was the original volume of the solution?

Multiple Choice

A solution has a concentration of 0.55 M and a volume of 1.2 L. What would the final volume be to dilute the solution to a concentration of 0.3 M?

• 2.2 L
• 3.0 L
• 2.33 L

• 1.53 L

Multiple Choice

A solution has a volume of 1.5 L. If a dilution is performed, and the new volume is 2.3 L with a concentration of 1.4 M, what was the original concentration of the solution?

• 2.86 M

• 1.11 M

• 1.29 M

• 2.15 M