Multiple Choice
Which acid, in combination with its conjugate base, would be the best choice to make a buffer of pH = 4.20?
A) acetic acid (Ka = 1.8 × 10-5)
B) benzoic acid (Ka = 6.3 × 10-5)
C) formic acid (Ka = 1.8 × 10-4)
D) hydrofluoric (Ka = 7.2 × 10-4)
E) nitrous acid (Ka = 4.5 × 10-4)
Correct Answer:
Verified
Correct Answer:
Verified
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