Unit 1, topic 8 SOLUBILITY

Question 0

Solute + Solvent = ?

Answer 0

Solution

Question 1

Definition of solubility

Answer 1

Solubility is the mass of solute required to saturate 100g of water at a particular temperature. (units: g/100g of water)

Question 2

Factors which decrease time to disolve a solid in water (4):

Answer 2

1) Increased temperature
2) Stirr
3) Increased surface area
4) Increase the volume of solvent

Question 3

The solubility of solids _________ with increase in temperature.

Answer 3

increases

Question 4

The solubility of gases ___________ with increase in temperature.

Answer 4

decreases

Question 5

Explain the danger of thermal pollution of water to aquatic life.

Answer 5

Temperature increase lowers the solubility of oxygen in water. Less oxygen = less life can be supported.