A 1.0 M solution of a compound with 2 ionizable groups (pKa's = 6.2 and 9.5; 100 mL total) has a pH of 6.8. If a biochemist adds 60 mL of 1.0 M HCl to this solution, the solution will change to pH:
A) 5.60.
B) 8.90.
C) 9.13.
D) 9.32.
E) The pH cannot be determined from this information.
Correct Answer:
Verified
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