Molarity Quiz

What is the molarity of 2.0 moles of NaHCO3 in 0.5 L of solution?

• 2 M

• 4 M

• 3 M

• 5 M

How do you calculate molarity?

• Molarity (M) = moles of solute / liters of solution.

• Molarity (M) = liters of solution / moles of solute.

• Molarity (M) = moles of solute x liters of solution.

• Molarity (M) = moles of solute + liters of solution.

What happens to the molarity if you add more solute to a fixed volume of solution?

• The molarity decreases as the number of moles of solute increases.

• The molarity remains the same regardless of the amount of solute added.

• The molarity increases as the number of moles of solute increases.

• The molarity becomes zero when more solute is added.

What is molarity?

• A measure of temperature defined as the number of moles of solute per liter of solution.

• A measure of concentration defined as the number of moles of solute per liter of solution.

• A measure of pressure defined as the number of moles of solute per liter of solution.

• A measure of volume defined as the number of moles of solute per liter of solution.

What is the effect of dilution on molarity?

• Dilution increases the molarity of a solution.

• Dilution has no effect on the molarity of a solution.

• Dilution decreases the molarity of a solution as the volume increases while the number of moles remains constant.

• Dilution only affects the temperature of the solution.

What is the molarity of 3 moles of hydrochloric acid in 3 L of water?

• 0.5 M

• 1 M

• 2 M

• 3 M

How many moles of NaCl are present in a solution with a molarity of 8.59 M and a volume of 125 mL?

• 0.50 mol

• 1.07 mol

• 2.00 mol

• 0.75 mol

What is the molarity of a solution if 0.2 moles of solute are dissolved in 0.4 L of solution?

• 0.5 M

• 0.4 M

• 0.2 M

• 1.0 M

If you have a 2 M solution and dilute it to 4 L, how many moles of solute do you have?

• 4 moles

• 6 moles

• 8 moles

• 10 moles

What is the molarity of 1.0 mol of KCl dissolved in 500 mL?

• 1 M

• 2 M

• 0.5 M

• 3 M