Solubility Curves

The video tutorial explains solubility and solubility curves, focusing on how different salts, such as copper II sulfate and potassium sulfate, dissolve in water. It highlights that solubility generally increases with temperature and demonstrates how to read solubility curves to determine the solubility of salts at specific temperatures. The tutorial also covers the concepts of saturated and supersaturated solutions, explaining how solutes behave when the solution is cooled.

Which of the following statements is true about the solubility of copper II sulfate compared to potassium sulfate?

• Potassium sulfate is blue in color.

• Copper II sulfate is more soluble than potassium sulfate.

• Both salts have the same solubility.

• Copper II sulfate is less soluble than potassium sulfate.

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

• It decreases.

• It remains the same.

• It increases.

• It fluctuates randomly.

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

• By checking the boiling point of the solution.

• By measuring the color of the solution.

• By drawing a vertical line from the temperature on the x-axis to the curve, then a horizontal line to the y-axis.

• By counting the number of peaks on the curve.

What is a saturated solution?

• A solution where the maximum amount of solute is dissolved.

• A solution that can dissolve more solute.

• A solution that is boiling.

• A solution with no solute.

What occurs when a saturated solution is cooled?

• It changes color.

• It evaporates completely.

• It becomes a supersaturated solution.

• It becomes unsaturated.