Solubility Curve

Front

What is a solubility curve?

Back

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

Front

What does it mean if a solution is unsaturated?

Back

It means that more solute can still be dissolved in the solvent at a given temperature.

Front

What does it mean if a solution is saturated?

Back

It means that the maximum amount of solute has been dissolved in the solvent at a given temperature.

Front

What does it mean if a solution is supersaturated?

Back

It means that the solution contains more solute than it can normally hold at a given temperature, often achieved by heating.

Front

How does temperature affect the solubility of most solids in water?

Back

Generally, the solubility of most solids increases as the temperature increases.

Front

What is the solubility of KNO₃ at 80°C?

Back

At 80°C, KNO₃ has a high solubility, allowing more than 20 grams to dissolve in water.

Front

Which solute does not increase in solubility with temperature?

Back

SO₂ (sulfur dioxide) does not increase in solubility as temperature increases.

Front

What is the solubility of NaNO₃ at 20°C compared to other salts?

Back

NaNO₃ has the highest solubility at 20°C among common salts.

Front

What happens when you add more solute to a saturated solution?

Back

The excess solute will not dissolve and will remain undissolved at the bottom.

Front

What is the effect of pressure on the solubility of gases?

Back

Increasing pressure increases the solubility of gases in liquids.