Molarity & Dilution

Front

What is concentration in a solution?

Back

The amount of solute dissolved in a given amount of solvent.

Front

What is the formula for molarity?

Back

Molarity = moles of solute / liters of solution.

Front

How do you calculate the volume of stock solution needed for dilution?

Back

Use the formula: C1V1 = C2V2, where C1 and V1 are the concentration and volume of the stock solution, and C2 and V2 are the concentration and volume of the diluted solution.

Front

What is the molarity of a solution containing 63 grams of sodium chloride in 650 mL?

Back

1.7 M.

Front

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

Back

3.1M is the most concentrated.

Front

What does it mean to dilute a solution?

Back

To dilute a solution means to decrease its concentration by adding more solvent.

Front

What is a saturated solution?

Back

A saturated solution is one in which no more solute can dissolve at a given temperature.

Front

What is a supersaturated solution?

Back

A supersaturated solution contains more solute than can normally dissolve at a given temperature.

Front

How many mL of a 2M NaCl solution are needed to prepare 100 mL of a 0.150M NaCl solution?

Back

7.5 mL.

Front

What is the relationship between molarity and the amount of solute?

Back

Higher molarity indicates a greater amount of solute per liter of solution.