Reading solubility curves

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 for a solution to be saturated?

Back

A saturated solution contains the maximum amount of solute that can dissolve at a given temperature, and any additional solute will remain undissolved.

Front

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

Back

Locate the temperature on the x-axis and find the corresponding point on the curve to see how many grams of solute can dissolve in 100 grams of water.

Front

What is the solubility of KI at 10 °C?

Back

KI is the most soluble solute at 10 °C.

Front

What is the solubility of CaCl2 at approximately 17 °C?

Back

70 grams of CaCl2 are soluble in 100 g of water at approximately 17 °C.

Front

What indicates that a solution is unsaturated?

Back

In an unsaturated solution, more solute can still dissolve without any remaining undissolved material.

Front

What happens when a saturated solution is cooled?

Back

When a saturated solution is cooled, some solute may crystallize out of the solution.

Front

What is the most soluble substance at 0 °C?

Back

NaNO3 is the most soluble substance at 0 °C.

Front

What does it mean if a solution is clear and has no material at the bottom?

Back

It may indicate that the solution is unsaturated, as all the solute has dissolved.

Front

What is the significance of temperature in solubility?

Back

Temperature affects the solubility of most solids; generally, solubility increases with temperature.