Multiple Choice
Which of the following solutions would have the lowest pH?
(HCO2H: Ka = 1.8 x 10-4; NH4+: Ka = 5.6 x 10-10)
A) 0.10 M HCO2H
B) 0.10 M NaHCO2
C) 0.10 M NH4+
D) a solution that is 0.10 M in both HCO2H and NaHCO2
E) a solution that is 0.10 M in both NH4+ and NH3
Correct Answer:

Verified
Correct Answer:
Verified
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