How is pH defined?
a. Log of the dissociation constant of the weak acid in a solution.
b. Negative logarithm of the H+ ion concen-tration of a solution.
c. Point at which an electrolyte solution is exactly 50% dissociated.
d. Ratio of a solution's weak acid concentra-tion to its conjugate base pair.
ANS: B
pH is the negative logarithm of the [H+] used as a positive number.
Health Professions
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