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You Need to Prepare a Buffer Solution with a PH

Question 36

Multiple Choice

You need to prepare a buffer solution with a pH of 4.00, using NaF and HF. What ratio of the ratio of [base]/[acid] should be used in making the buffer? For HF, Ka = 7.2 × 10- 4.


A) [base]/[acid] = 0.14
B) [base]/[acid] = 0.42
C) [base]/[acid] = 2.36
D) [base]/[acid] = 7.20
E) None of the above ratios is correct.

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