Molarity and Dilution Quiz

What is the formula for calculating molarity?

• Molarity = moles of solute / volume of solution (in liters)

• Molarity = concentration of solute / volume of solution (in liters).

• Molarity = mass of solute / volume of solution (in liters).

• Molarity = moles of solute * volume of solution (in liters).

Calculate the molarity of a solution that contains 0.25 moles of solute in 500 mL of solution.

• 0.1 M

• 0.05 M

• 0.5 M

• 1 M

What is the unit of molarity?

• g/L

• mol/m^3

• mol/kg

• mol/L

A 100 mL solution contains 0.5 moles of solute. What is the molarity of the solution?

• 0.05 M

• 5 M

• 0.5 M

• 50 M

What is the formula for dilution calculations?

• C1 + V1 = C2 + V2

• C1V1 = C2 + V2

• C1V1 = C2 - V2

• C1V1 = C2V2

If you dilute 50 mL of a 2 M solution to a final volume of 200 mL, what is the molarity of the diluted solution?

• 0.5 M

• 2 M

• 1 M

• 0.1 M

A 250 mL solution contains 0.1 moles of solute. If you dilute 50 mL of this solution to a final volume of 200 mL, what is the molarity of the diluted solution?

• 0.08 M

• 0.06 M

• 0.04 M

• 0.02 M

What is the molarity of a solution that contains 0.5 moles of solute in 1 L of solution?

• 0.5 M

• 1 M

• 2 M

• 0.1 M

If you dilute 100 mL of a 1 M solution to a final volume of 500 mL, what is the molarity of the diluted solution?

• 0.2 M

• 1 M

• 0.5 M

• 0.1 M

A 500 mL solution contains 0.2 moles of solute. If you dilute 100 mL of this solution to a final volume of 400 mL, what is the molarity of the diluted solution?

• 0.16 M

• 0.12 M

• 0.08 M

• 0.04 M