Solubility Quiz

Which factor does NOT affect the solubility curve of a substance?

• Pressure

• Temperature

• Color of the substance

• Nature of the solvent

How does increasing temperature generally affect the solubility of a solid in a liquid?

• Decreases solubility

• Increases solubility

• Has no effect on solubility

• First increases then decreases

What does a point on a solubility curve represent?

• The temperature at which a solute will dissolve

• The maximum amount of solute that can dissolve in 100g of solvent at a specific temperature

• The minimum amount of solute that can dissolve in 100g of solvent at a specific temperature

• The rate at which a solute will dissolve at a specific temperature

If a solubility curve of a substance slopes upwards as temperature increases, what does this indicate?

• Solubility decreases with temperature

• Solubility is independent of temperature

• Solubility increases with temperature

• The substance is insoluble in water

How does pressure affect the solubility of gases in liquids?

• Increasing pressure decreases solubility

• Increasing pressure has no effect on solubility

• Increasing pressure increases solubility

• Pressure only affects solids, not gases

Given a solubility curve, how can you determine the solubility of a substance at a specific temperature?

• Find the temperature on the x-axis and read the corresponding solubility on the y-axis

• Find the solubility on the y-axis and read the corresponding temperature on the x-axis

• Calculate the area under the curve up to the given temperature

• It cannot be determined from a solubility curve

What is the significance of a solubility curve in the pharmaceutical industry?

• It helps in determining the color of medicines

• It is used to predict the weather

• It assists in designing the formulation of drugs for optimal solubility

• It determines the electrical conductivity of medicines

If a solution is prepared by dissolving the maximum amount of solute at a given temperature according to its solubility curve, the solution is said to be:

• Unsaturated

• Saturated

• Supersaturated

• Diluted

What happens if more solute is added to a saturated solution at a temperature where the solubility curve indicates the solution has reached its maximum capacity?

• The solute will dissolve completely

• The solute will not dissolve and will precipitate out

• The temperature of the solution will increase

• The pressure of the solution will increase

Why is it important to consider solubility curves in environmental science?

• To determine the color of water in different temperatures

• To predict the movement of tectonic plates

• To understand the solubility of pollutants in water at different temperatures

• To calculate the speed of wind