Which of the following acids would be best to create a buffer with a pH of 3.75?
a. HF, Ka = 7.2 x 10-4
b. C6H5COOH, Ka = 6.3 x 10-5
c. CH3COOH, Ka = 1.8 x 10-5
d. H2S, Ka1 = 1.0 x 10-7
e. HCN, Ka = 4.0 x 10-10
Answer: B
Which of the following acids would be best to create a buffer with a pH of 3.75?
a. HF, Ka = 7.2 x 10-4
b. C6H5COOH, Ka = 6.3 x 10-5
c. CH3COOH, Ka = 1.8 x 10-5
d. H2S, Ka1 = 1.0 x 10-7
e. HCN, Ka = 4.0 x 10-10
Answer: B