Chemistry Regents Solutions Review

Front

What is molarity?

Back

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

Front

How do you calculate molarity?

Back

Molarity = moles of solute / liters of solution.

Front

What is a colligative property?

Back

Colligative properties are properties of solutions that depend on the number of solute particles in a given amount of solvent, not the identity of the solute.

Front

What effect does dissociation have on colligative properties?

Back

Dissociation increases the number of solute particles in solution, enhancing the effect on colligative properties like freezing point depression.

Front

What is the freezing point depression?

Back

Freezing point depression is the decrease in the freezing point of a solvent when a solute is added.

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 happens to a saturated solution when cooled?

Back

When a saturated solution is cooled, some solute may precipitate out of the solution.

Front

What is the solubility of a substance?

Back

Solubility is the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature.

Front

How does temperature affect solubility?

Back

Generally, the solubility of solids increases with temperature, while the solubility of gases decreases.

Front

What is the formula for calculating the amount of solute that precipitates out of a solution?

Back

Amount of solute precipitated = initial solubility at higher temperature - solubility at lower temperature.