Factors of Solubility

Which of the following does not affect the solubility of a solute in a solvent?

• The rate of stirring

• The size of the solute

• The temperature of the solvent

• The amount of the colloid added

Which of the following would NOT increase the rate at which a sugar cube dissolves?

• Reducing the amount of solvent

• Crushing the sugar cube

• Stirring the solution

• Heating the solvent

Which of the following would dissolve the slowest?

• a sugar cube in hot water

• a sugar cube in cool water

• powdered sugar in cool water

• powdered sugar in hot water

Tags

NGSS.MS-PS1-4

Stirring the solution...

• decrease the rate of solubility

• Doesn't change the rate of solubility

• increase the rate of solubility

• None of the above

When you measure how fast a solute dissolves, you are measuring the

• amount of dissolving

• rate of particle movement

• amount of particle movement

• rate of solubility

The smaller the particle size results in a....

• increase in solubility

• decrease in solubility

• decrease in surface area

• increase in bond strength

In the above picture, a powder is about to be poured into the liquid. Which of the following should be done to make this powder dissolve faster?

• stir the powder in the liquid

• freeze the mixture

• add more powder to the liquid

• store the mixture in a dark place

Tags

NGSS.MS-PS3-5

What is the factor affecting the rate of solubility in the statement above?

• Rate of stirring

• Temperature

• Size of solute

• Total surface area

Three 10 g samples of sugar are represented below.

Sample A dissolves in water more slowly than sample B.
Sample B dissolves more slowly than sample C.
Which of the following best explains why sample A dissolves more slowly than the other two?

• It has the most volume.

• It has the smallest surface area.

• It has the largest number of sugar molecules.

• It has the fewest bonds between sugar modules.

Select all the factors which can affect the solubility of a substance

• temperature

• size of solute or the surface area of the solute

• the amount of stirring

• colour of the solute