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Acids, bases and titration — Question 8

Original QCE Vault practice · 1 mark

Q8 · Practice questionSimple familiar1 mark

QUESTION 8

A monoprotic acid has pKa=4.20. At pH 5.20, the ratio of conjugate base to undissociated acid is
(A)
0.10
(B)
1.0
(C)
5.0
(D)
10
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