Molarity and Dilutions Review

Front

What is a concentrated solution?

Back

A concentrated solution is a solution that has a large amount of solute in a small volume of solvent.

Front

How do you calculate Molarity?

Back

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

Front

What is the Molarity of a solution containing 40.0 g of NaCl in 500.0 mL of water?

Back

1.37 M.

Front

What is the Molarity of a solution made by dissolving 0.50 mole of NaCl in 400.0 mL of water?

Back

1.25 M.

Front

Which solution is the sweetest: 1M, 3M, 3.1M, or 2.5M?

Back

3.1M.

Front

What is the formula for dilution?

Back

C1V1 = C2V2, where C is concentration and V is volume.

Front

What volume of 10.0 M NaOH is needed to prepare 300 mL of 2.00 M NaOH?

Back

60.0 mL.

Front

Define solute and solvent.

Back

A solute is the substance that is dissolved, while a solvent is the substance that does the dissolving.

Front

What is the difference between molarity and molality?

Back

Molarity is moles of solute per liter of solution, while molality is moles of solute per kilogram of solvent.

Front

What is a dilute solution?

Back

A dilute solution is a solution that has a small amount of solute in a large volume of solvent.