Chapter 17

Question 1

Common ion effect

Answer 1

When a strong and weak electrolyte with a common ion are in the same soln, the weak electrolyte would dissociate less than usual

Question 2

Buffers

Answer 2

Soln of a weak conjugate acid-base pair that resist drastic changes in pH

Question 3

Buffer capacity

Answer 3

Amount of acid or base the buffer can neutralize before the pH begins to change to an appreciable degree

Question 4

Optimal pH

Answer 4

When the pH is equal to pKa([HA]=[A-])

Question 5

Equivalence point

Answer 5

When amount of acids equals the base

Question 6

True or false: Strong acids have higher initial pH than weak acids

Answer 6

False, its the opposite

Question 7

Indicators

Answer 7

Weak acids that have a different color than their conjugate base form

Question 8

Ksp

Answer 8

Solubility product constant

Question 9

Common ion effect on solubility

Answer 9

If common ion is present already the solubility of a newly added salt will decrease

Question 10

how does pH also affects solubility

Answer 10

If substance has a basic anion, it will be more soluble in an acidic solution

Question 11

how does Buffers control pH

Answer 11

When buffers is used, theres no change in concentration of hydroxide ion

Question 12

What are amphoteric oxides and hydroxides are soluble in?

Answer 12

Strong acids, or base because they can be acid or base