ch 5

Question 1

what’s a buffer

Answer 1

a solution that resists any change in PH due to an acid base pair

Question 2

what’s an acid base pair

Answer 2

its a mixture of a weak acid and its conjugate false or weak base and its conjugate acid

Question 3

what do weak acids or bases do in water

Answer 3

partially dissociate

Question 4

how does a weak acid buffer work?

Answer 4

the non-dissociated acid will donate H+ ions if OH- ions are added to the solution, producing water and conjugate base, and the dissociated conjugate base will react with any H+ ions added to the solution by turning back into the weak acid

Question 5

what buffer capacity

Answer 5

the maximum number of hydrogen ions a buffer solution can neutralise

Question 6

how does a weak base buffer work?

Answer 6

the non-dissociated base will donate OH- ions if H+ ions are added to the solution, producing water and conjugate acid, and the dissociated conjugate acid will react with any OH- ions added to the solution by turning back into the weak base

Question 7

why does a buffer have a buffer capacity?

Answer 7

if too much of an acid or base is added to a solution, the buffer will run out of ions or weak acid/base to react with thus overwhelming the buffer and turning the solution acidic or basic