Reading Solubility Curves

Front

What is a solubility curve?

Back

A graphical representation showing the relationship between the solubility of a substance and temperature.

Front

What does it mean if a solution is saturated?

Back

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

Front

What is an unsaturated solution?

Back

An unsaturated solution 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.

Front

How do you determine the solubility of a substance at a specific temperature using a solubility curve?

Back

Locate the temperature on the x-axis, then find the corresponding point on the curve for the substance.

Front

What is the significance of the intersection point on a solubility curve?

Back

The intersection point indicates the temperature at which two substances have the same solubility.

Front

At what temperature does KNO3 have a solubility of 25 grams per 100 grams of water?

Back

25°C.

Front

Which compound is least soluble at 70°C according to the solubility curve?

Back

NaCl.

Front

Which compound is most soluble at 20°C according to the solubility curve?

Back

NaNO3.

Front

What happens to the solubility of most salts as temperature increases?

Back

The solubility of most salts increases with temperature.