Chem Com Unit 4B Solutions

Front

What is a solution?

Back

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

Front

What is a solute?

Back

The substance that is dissolved in a solution, such as salt in saltwater.

Front

What is a solvent?

Back

The substance in which the solute is dissolved, typically a liquid, such as water.

Front

What does it mean for a solution to be saturated?

Back

A solution is saturated when it contains the maximum amount of solute that can dissolve at a given temperature.

Front

What is a supersaturated solution?

Back

A solution that contains more solute than can normally dissolve at a given temperature, often achieved by heating.

Front

What is the effect of temperature on solubility?

Back

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

Front

What is the polar nature of water?

Back

Water is polar due to its bent shape and the uneven distribution of electrons, leading to partial positive and negative charges.

Front

How do you increase the concentration of a solution?

Back

By adding more solute to the solution.

Front

What is the solubility of KNO3 at 40ºC?

Back

65 grams per 100 grams of water.

Front

What is the solubility of K2Cr2O7 at 95ºC?

Back

75 grams per 100 grams of water.