Suppose you have created a buffer solution that is 0.250 M in both benzoic acid (HC7H5O2)...
Suppose you have created a buffer solution that is 0.250 M in both benzoic acid (HC7H5O2) and potassium benzoate (KC7H5O2) and that the pH of this solution is 4.65. Assuming that the buffer capacity has not been exceeded, which of the pH values listed below would you expect after adding a small amount of a dilute strong acid solution?
| 8.85 |
| 4.49 |
| 4.81 |
| 2.88 |
| There is not enough information to determine. |
Homework Answers
The buffer has a pH of 4.65 with [acid] = [conjugate base] = 0.25 0M
When a small amount of acid is added, the pH is supposed to be dropped by small amount.
So it should be 4.49 which is close to 4.65
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Suppose you have created a buffer solution that is 0.250 M in
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Suppose you have created a butter solution that is 0.250 M in both benzoic acid (HC,H,O,) and potassium benzoate (KCH,0z) and that the pH of this solution is 465. Assuming that the butter capacity has not been exceeded, which of the pH values listed below would you expect after adding a small amount of a dilute strong acid solution? O 4.49 4.81 8.85 2.88 There is not enough information to determine
please confirm these!!! will be sure to rate your answer :) a) b) Question 3 Part...
please confirm these!!! will be sure to rate your answer
:)
a)
b)
Question 3 Part A What volume (in mL) of 3.75 X 10 M HNO, is needed to titrate 45,0 mL of 1.15 x 10-M LiOH to the equivalence point? 19.4 mL 0.00958 ml 0.0138 mL 13.8 ml O 9.58 ml Submit Request Answer Suppose you have created a buffer solution that is 0.250 Min both benzoic acid (HCH.0) and potassium benzoate (CHO) and that the pH of...
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Suppose you have created a butter solution that is 0.250 M in both benzoic acid (HC,H,O,) and potassium benzoate (KCH,0z) and that the pH of this solution is 465. Assuming that the butter capacity has not been exceeded, which of the pH values listed below would you expect after adding a small amount of a dilute strong acid solution? O 4.49 4.81 8.85 2.88 There is not enough information to determine
please confirm these!!! will be sure to rate your answer
:)
a)
b)
Question 3 Part A What volume (in mL) of 3.75 X 10 M HNO, is needed to titrate 45,0 mL of 1.15 x 10-M LiOH to the equivalence point? 19.4 mL 0.00958 ml 0.0138 mL 13.8 ml O 9.58 ml Submit Request Answer Suppose you have created a buffer solution that is 0.250 Min both benzoic acid (HCH.0) and potassium benzoate (CHO) and that the pH of...
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much of each solution should be mixed to prepare this buffer?
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