Solutions

Question 1

List the strong acids.

Answer 1

HCl
HBr
HI
HNO3
H2SO4
HXO3
HXO4 (where X is a halogen)

Question 2

List the strong bases

Answer 2

LiOH
NaOH
KOH
Mg(OH)2
Ca(OH)2
Sr(OH)2
Ba(OH)2

Look at these on periodic table to help memorize

Question 3

What 3 changes happen during the formation of a solution?

Answer 3

Interparticle forces in solute break
Intermolecular forces between solvent molecules break
Forces of attraction between solute and solvent form

Question 4

What makes molecular compounds more soluble?

Answer 4

If the solvent is polar, the solute should also be polar, and vice versa. A more polar solute will be more soluble in water.

Question 5

What makes ionic compounds more soluble?

Answer 5

Large, low-charge ions have less lattice energy, making them more soluble.

Question 6

Effect of pressure on solubility?

Answer 6

Gases are more soluble under pressure because they are “trapped” in solution. It has little effect on solids and liquids

Question 7

Effect of temperature on solubility?

Answer 7

Gases are less soluble because they have more kinetic energy with which to escape. Solids and liquids are more soluble because it is easier to break the attractivie forces in the solute.

Question 8

What will the pH be at the equivalence point if a strong acid is reacted with a strong base?

Answer 8

7

Question 9

Will the pH at the equivalence point be above or below 7 if a strong acid is reacted with a weak base?

Answer 9

Below 7

Question 10

Will the pH at the equivalence point be above or below 7 if a weak acid is reacted with a strong base?

Answer 10

Above 7

Question 11

Rate of dissolution is based on what factor?

Answer 11

How often a solid solute particle touches a solvent particle

Question 12

What are the 3 ways to increase the rate of dissoluton?

Answer 12

Increase temperature, agitate, or increase surface area of solute