PS SPS6 Solutions (Checkpoint 1) December 2 , 2024

Front

What is a solution?

Back

A solution is a homogeneous mixture composed of two or more substances, where one substance (the solute) is dissolved in another (the solvent).

Front

What is a solute?

Back

A solute is the substance that is dissolved in a solution. For example, in a sugar-water solution, sugar is the solute.

Front

What is a solvent?

Back

A solvent is the substance that dissolves the solute in a solution. In a sugar-water solution, water is the solvent.

Front

What does it mean for a solution to be diluted?

Back

A diluted solution has a lower concentration of solute compared to the solvent. For example, adding more water to a sugar solution makes it more diluted.

Front

What factors affect the rate of dissolution?

Back

The rate of dissolution can be affected by temperature, stirring, surface area of the solute, and the nature of the solute and solvent.

Front

How does temperature affect the rate of dissolution?

Back

Increasing the temperature generally increases the rate of dissolution, as it provides more energy to the molecules.

Front

What is the effect of stirring on dissolution?

Back

Stirring increases the rate of dissolution by distributing the solute particles throughout the solvent more quickly.

Front

What happens to the rate of dissolution when the surface area of the solute increases?

Back

Increasing the surface area of the solute (e.g., by crushing it) increases the rate of dissolution.

Front

What is the relationship between temperature and solubility for most solids?

Back

For most solids, solubility increases with an increase in temperature.

Front

What is the effect of cold water on the speed of dissolving?

Back

Cold water slows down the dissolving process because the molecules have less energy.