Solubility Curves

Front

What is a solubility curve?

Back

A graph that shows the relationship between the solubility of a substance and temperature, indicating how much solute can dissolve in a solvent at various temperatures.

Front

Define saturated solution.

Back

A solution in which no more solute can dissolve at a given temperature; it is in equilibrium with undissolved solute.

Front

What is an unsaturated solution?

Back

A solution that can still dissolve more solute at a given temperature.

Front

What is a supersaturated solution?

Back

A solution that contains more dissolved solute than what is possible at a given temperature; it is unstable.

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 K2Cr2O7 at 95 ºC?

Back

75 grams per 100 grams of water.

Front

What happens to the solubility of NaCl as temperature increases?

Back

The solubility of NaCl increases with temperature.

Front

What is the solubility of KCl at 50 ºC when 50 grams is dissolved in 100 grams of water?

Back

The solution is supersaturated.

Front

Which substance is most soluble at 0 ºC: KI, NaNO3, NaCl, or Ce2(SO4)3?

Back

NaNO3 is the most soluble at 0 ºC.

Front

What is the definition of solute?

Back

A substance that is dissolved in a solvent to form a solution.