We’re being asked to determine the pH of a 0.50 M weak acid that is 13 % ionized.
Recall that the percent ionization is given by:
Also recall that pH is given by:
A weak acid was 13% ionized. What would be the pH of a 0.50 M solution and what is the pKa of the acid?
A. pH = 1.2; pKa = 2.0
B. pH = 4.3; pKa = 3.9
C. pH = 2.5; pKa = 3.2
D. pH = 4.8; pKa = 6.5
E. pH = 11.8; pKa = 11.8
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