Factors That Affect Dissolving

What are the factors that affect the rate of dissolving?

• Time of day

• Temperature, surface area, agitation, and the nature of the solute and solvent

• Distance from the equator

• Color of the solute

Why does stirring affect the rate of dissolving?

• Stirring decreases the contact between the solute and the solvent.

• Stirring has no effect on the rate of dissolving.

• Stirring causes the solute to separate from the solvent.

• Stirring increases the contact between the solute and the solvent.

What happens to the rate of dissolving when the temperature of the solvent increases?

• Rate of dissolving increases

• Rate of dissolving becomes solid

• Rate of dissolving remains the same

• Rate of dissolving decreases

Tags

NGSS.MS-PS1-4

How does increasing the surface area of the solute affect the rate of dissolving?

• Faster rate of dissolving

• No effect on the rate of dissolving

• Causes the solute to solidify

• Slower rate of dissolving

How does the type of solvent affect the rate of dissolving?

• It can affect the rate of dissolving by impacting the solubility of the solute and the interactions between the solute and solvent molecules.

• It only affects the color of the solution

• It has no effect on the rate of dissolving

• It can speed up the rate of dissolving by decreasing solubility

Which of the following factors does not affect the rate of dissolving? Temperature Surface area Color Stirring

• D

• B

• A

• C

Which of the following will dissolve faster in water? A. A sugar cube B. Granulated sugar C. Powdered sugar D. They all dissolve at the same rate

• B. A piece of metal

• D. They all dissolve at the same rate

• C. Powdered sugar

• A. A salt crystal

What is the process called when a solute completely mixes with a solvent?

• Dissolution

• Evaporation

• Condensation

• Sublimation

What is the effect of increasing temperature on the rate of dissolving a solid in a liquid?

• A) It decreases the rate of dissolving

• B) It has no effect on the rate of dissolving

• C) It increases the rate of dissolving

• D) It causes the solute to precipitate

Tags

NGSS.MS-PS1-4

Which factor does not affect the rate of dissolving?

• A) Temperature

• B) Surface area

• C) Stirring

• D) Color of the solute