Understanding Molarity

What is the definition of molarity?

• The number of grams of solute per liter of solvent

• The number of grams of solute per liter of solution

• The number of moles of solute per liter of solution

• The number of moles of solute per liter of solvent

How is molarity expressed in terms of units?

• Grams per liter

• Moles per liter

• Liters per mole

• Moles per gram

If a solution is labeled as 3 M NaCl, what does it mean?

• There are 3 liters of NaCl in one mole of solution

• There are 3 moles of NaCl in one liter of solution

• There are 3 moles of NaCl in one liter of solvent

• There are 3 grams of NaCl in one liter of solution

How would you calculate the molarity of a solution if you have 58.44 grams of NaCl dissolved in 2 liters of solution?

• Convert the mass of NaCl to moles and divide by the volume of the solution

• Multiply the mass of NaCl by the volume of the solution

• Convert the volume of the solution to moles and divide by the mass of NaCl

• Divide the mass of NaCl by the volume of the solution

What is the molarity of a solution if 42.23 grams of NH4Cl is dissolved to make a solution with a volume of 1 liter?

• 0.789 M

• 3.579 M

• 1.579 M

• 2.579 M