17. Acid and Base Equilibrium
Diprotic Acids and Bases Calculations
Multiple Choice
Multiple ChoiceWhich of the following diprotic acid would produce the most acidic solution when dissolved?
A
0.200 M H2SO3 (Ka1 = 1.6 x 10-2 ; Ka2 = 4.6 x 10-5)
B
0.200 M H3PO4 (Ka1 = 7.5 x 10-3 ; Ka2 = 6.2 x 10-8 ; Ka3 = 4.2 x 10-13)
C
0.200 M H2CO3 (Ka1 = 4.3 x 10-7 ; Ka2 = 5.6 x 10-11)
D
0.200 M H2S (Ka1 = 8.9 x 10-8 ; Ka2 = 1.0 x 10-19)
E
0.200 M HC9H7O4 (Ka1 = 3.3 x 10-4)
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