Interpreting Solubility Curves

Front

What is a saturated solution?

Back

A saturated solution is one in which the maximum amount of solute has been dissolved in a solvent at a given temperature, and any additional solute will not dissolve.

Front

What is an unsaturated solution?

Back

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

Front

What is a supersaturated solution?

Back

A supersaturated solution contains more solute than can normally dissolve at a given temperature, often achieved by heating the solution and then cooling it.

Front

How does temperature affect the solubility of most solids?

Back

For most solids, solubility increases as temperature increases.

Front

What is the solubility of K2Cr2O7 in 100 g of water at 20ºC?

Back

11 grams.

Front

Which solute does not increase in solubility with temperature?

Back

NH3 (ammonia) does not increase in solubility as temperature rises.

Front

What is the solubility of NaNO3 in 100 g of water at 40ºC if 60g is added?

Back

The solution is unsaturated.

Front

What is the solubility of Ce2(SO4)3 at 80 degrees?

Back

2 grams.

Front

Define solubility curve.

Back

A solubility curve is a graph that shows the relationship between the solubility of a substance and temperature.

Front

What does a horizontal line on a solubility curve indicate?

Back

A horizontal line indicates that the solute is saturated at that temperature.