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You have 100ml of 1.0M PIPES buffer at the pH = 5.76. The pKa for PIPES...

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Chemistry

You have 100ml of 1.0M PIPES buffer at the pH = 5.76. The pKafor PIPES is 6.76. How much 10 M NaOH would you need to add tochange the pH from 5.76 to 6.76? Do not concern yourself withdilution effects.

a. 2.0 ml

b. 4.0 ml

c. 8.0 ml

d. 9.8 ml

The answer is B I am just unsure how to arrive there.

Answer & Explanation Solved by verified expert
4.0 Ratings (527 Votes)
Ans B According to HendersonHasselbalch equation pH of the buffer is given by pH pKa log PIPESHPIPES So PIPESHPIPES 10pHpKa where PIPESH conjugate base of    See Answer
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