Calculating Molarity Practice Problems

What is the formula for calculating molarity?

• Grams / Liters

• Moles / Liters

• Moles * Liters

• Moles / Milliliters

How do you convert milliliters to liters?

• Divide by 1000

• Multiply by 100

• Divide by 100

• Multiply by 1000

What is the molarity of a solution with 0.06 moles of solute in 1.5 liters of solution?

• 0.04 M

• 0.02 M

• 0.06 M

• 0.08 M

How do you convert grams of a substance to moles?

• Multiply by the molar mass

• Divide by the molar mass

• Divide by Avogadro's number

• Multiply by Avogadro's number

What is the molarity of a solution made by dissolving 29.25 grams of NaCl in 2 liters of solution?

• 0.25 M

• 0.15 M

• 0.45 M

• 0.35 M

How many moles of solute are in 0.5 liters of a 1.5 M solution?

• 2.25 moles

• 0.25 moles

• 1.5 moles

• 0.75 moles

How many grams of sodium chloride are needed to prepare 0.5 liters of a 1.5 M solution?

• 29.25 grams

• 87.66 grams

• 58.44 grams

• 43.83 grams

What is the molarity of a solution made by dissolving 34.2 grams of sugar (C12H22O11) in 500 milliliters of solution?

• 0.4 M

• 0.1 M

• 0.2 M

• 0.3 M

How many moles of calcium chloride are in 250 milliliters of a 0.1 M solution?

• 0.025 moles

• 0.05 moles

• 0.075 moles

• 0.1 moles

How many grams of calcium chloride are in 250 milliliters of a 0.1 M solution?

• 2.77 grams

• 5.54 grams

• 11.08 grams

• 22.16 grams