Buffer solutions

what is a buffer solution

resists change in pH when small amounts of acid or base added

2 requirments to be a buffer solutions

1] must contain undissolved weak acid (HA) and that acid’s conjugate base (A^-)

way of making Buffer solution I

mix weak acid with salt of conjugate base in (s) or (aq)

way of making buffer solution II

partiually nuterilise a weak acid with a strong base

why so flat

so flat as acid partiually nuetrilsies so results in solution acting as a buffer solution where it resists changes in pH

how does a buffer solution resist change when acid is added

add acid , dissociates H⁺ , increase [H⁺] , equilibrium shifts left , decrease [H⁺] , [H⁺] stays roghly the same so pH stays oughly the same

how does a buffer solution resist changes when alkeline is added

add alkeiine , OH^- reacts with H⁺ , decrease[H⁺] ,EQUILIBRIUM SHIFTS TO THE RIGHTS , INCREASE [H⁺] , [H⁺] roughly stys the same so pH rougly stays the same

everyday used of buffer solutions

swiiming pools , blood pH ,

acid buffer solution , PH and how to make

pH and how to makr acidic buffer solutions

weak acid + conjugate base

pH<7

pH and how to makr alkeline buffer solutions

weak base and conjugate base

pH>7