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 for a solution to be 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 is one that contains less solute than can be dissolved at a given temperature.

Front

Define 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 solubility?

Back

Generally, for most solids, solubility increases with temperature, while for gases, solubility decreases with increasing temperature.

Front

What is the solubility of NaBr at 70 degrees Celsius?

Back

120 grams per 100 grams of water.

Front

What is the solubility of KNO3 at 40 degrees Celsius?

Back

65 grams per 100 grams of water.

Front

If 55g of KCl is dissolved in 100g of water at 70ºC, what type of solution is it?

Back

Supersaturated.

Front

If 25g of NaCl is dissolved in 100g of water at 70ºC, what type of solution is it?

Back

Unsaturated.

Front

What is the significance of a solubility curve in chemistry?

Back

It helps predict how much solute can dissolve in a solvent at various temperatures.