Worksheetsrate of dissolution
Total questions: 15
Worksheet time: 30mins
What factor increases the dissolution rate due to more surface area being exposed to the solvent?
Granulated sugar compared to a sugar cube
Adding a solute with a common ion
Decreasing the temperature
Using a non-polar solvent for a polar solute
What process allows fresh solvent molecules to come into contact with the solute, speeding up dissolution?
Condensation
Evaporation
Agitation or stirring
Freezing
How does temperature affect the dissolution process?
Increases molecule movement, aiding dissolution
Decreases molecule movement
Has no effect on dissolution
Only affects gases
What type of solutes dissolve well in polar solvents?
Insoluble solutes
Solid solutes only
Polar solutes
Non-polar solutes
What is the common-ion effect?
A decrease in solubility when a common ion is added
An increase in solubility when a common ion is added
The effect of temperature on solubility
The effect of agitation on solubility
What happens when the solute and solvent have strong attractions to each other?
The solvent evaporates
The solute does not dissolve
The solute dissolves more slowly
The solute dissolves more easily
Which factor does NOT directly affect the rate of dissolution?
Surface area of the solute
Presence of other solutes
Agitation of the solution
Color of the solvent
What is solubility?
How much of a solute can dissolve in a given amount of solvent
The color change when a solute dissolves
The temperature at which a solute dissolves
How quickly a solute dissolves in a solvent
Why do polar solutes dissolve well in polar solvents?
Because of their shape
Because of their strong attractions to each other
Because of their boiling points
Because of their solid state
What effect does heating up the solvent have on the molecules?
Makes them freeze
Gives them more energy and makes them move faster
Makes them evaporate
Makes them move slower
What is NOT a factor that influences how quickly something dissolves?
Surface area
Agitation
Weight of the solute
Temperature
What describes the interaction between solute and solvent in dissolution?
Solute-solute repulsion
Solvent-solvent attraction
Solute-solvent attraction
Solute-solvent repulsion
What is the role of agitation in the dissolving process?
It allows fresh solvent molecules to contact the solute
It changes the color of the solution
It decreases the solubility of the solute
It increases the temperature of the solvent
Which of the following is true about the solubility of a solute?
It is only affected by temperature
It decreases as the solvent's temperature increases
It is affected by the solute-solvent interactions and presence of other solutes
It is constant for all solutes in all solvents
What happens to the dissolution rate when the surface area of the solute increases?
It first increases, then decreases
It increases
It remains the same
It decreases
