CBA #1 Review

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solvent to form a solution. For example, sugar is a solute when dissolved in water.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, resulting in a solution. Water is often referred to as the universal solvent.

Front

What does it mean for a solution to be saturated?

Back

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

Front

What are the three factors that affect the rate of dissolution?

Back

The three factors are temperature, agitation (stirring), and surface area of the solute.

Front

How does temperature affect the rate of dissolution?

Back

Increasing the temperature generally increases the rate at which a solute dissolves because the molecules move faster.

Front

What is surface area in the context of dissolution?

Back

Surface area refers to the exposed area of a solute. A larger surface area allows for faster dissolution.

Front

What is an unsaturated solution?

Back

An unsaturated solution is one that can still dissolve more solute at a given temperature and pressure.

Front

What is a supersaturated solution?

Back

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

Front

Why is stirring important when dissolving a solute?

Back

Stirring helps distribute the solute throughout the solvent, increasing the rate of dissolution.

Front

What happens when you add more solute to a saturated solution?

Back

The excess solute will not dissolve and will remain undissolved at the bottom of the container.