I need to calculate the buffer capacity in acid and in a base from these data....

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Chemistry

I need to calculate the buffer capacity in acid and in a basefrom these data. Then I need to write a short paragraph ( 7sentences) explaining what happen and why one is better buffer thatthe other.
Buffer Capacity = (number of moles of OH- or H3O+ added)
Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â (pHchange)(volume of buffer in L)
Buffer capacity in acid 25.0 ml of 0.10M acetic acid and 0.10 MSodium acetate solution
Buffer Volume
25.0mL
Buffer pH
4.5
Buffer capacity
Vol HCl 0.1M added
Ph
17mL
4.5
21.4
4.5
23.6
4.5
26.5
4.0
28.4
4.0
30.4
3.5
32.3
3.5

Buffer capacity in base
Buffer Volume
25.0mL
Buffer pH
4.5
Buffer capacity

Vol NaOH 0.1M added
Ph
34.9
4.5
36.8
4.5
38.6
5.0
39.9
5.0
41.5
5.0
42.8
5.5
44.1 mL Final volume
5.5
Type your answer plase

Answer & Explanation Solved by verified expert

4.0 Ratings (632 Votes)

Buffer capacity number of moles of acid or base added per liter solution change in pH of the buffer or Buffer capacity number of milli equivalents of acid or base added change in pH For Acid See Answer

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Vol HCl 0.1M added	Ph
17mL	4.5
21.4	4.5
23.6	4.5
26.5	4.0
28.4	4.0
30.4	3.5
32.3	3.5

Vol NaOH 0.1M added	Ph
34.9	4.5
36.8	4.5
38.6	5.0
39.9	5.0
41.5	5.0
42.8	5.5
44.1 mL Final volume	5.5