Question: The acid HA has pKa = 7.00. (a) Which is the principal species, HA or A-, at pH 6.00? (b) Which is the principal species

The acid HA has pKa = 7.00.
(a) Which is the principal species, HA or A-, at pH 6.00?
(b) Which is the principal species at pH 8.00?
(c) What is the quotient [A-]/[HA] at pH 7.00? at pH 6.00?

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