Review Unit 9 Solutions & Molarity

Front

What is molarity?

Back

Molarity (M) is a measure of the concentration of a solute in a solution, defined as the number of moles of solute per liter of solution.

Front

How do you calculate the molarity of a solution?

Back

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

Front

What is the formula to find the number of moles from molarity?

Back

Number of moles = Molarity (M) × Volume (L).

Front

If 54 mL of 0.1 M NaOH neutralizes 125 mL of HCl, how do you find the concentration of HCl?

Back

Use the formula: M1V1 = M2V2, where M1 and V1 are the molarity and volume of NaOH, and M2 and V2 are the molarity and volume of HCl.

Front

What is the concentration of HCl if 54 mL of 0.1 M NaOH neutralizes it?

Back

0.043 M.

Front

How does temperature affect the solubility of most solids?

Back

Solubility increases with an increase in temperature.

Front

What is an unsaturated solution?

Back

A solution that can still dissolve more solute.

Front

What does it mean for a substance to be soluble?

Back

A substance is soluble if it can dissolve in a solvent.

Front

What is a saturated solution?

Back

A solution that has dissolved the maximum amount of solute at a given temperature.

Front

What is a supersaturated solution?

Back

A solution that contains more solute than it can theoretically hold at a given temperature.