阿摩線上測驗
74. Which is the major specie for a carbonate-containing solution at pH 8.5? (Ka1 = 4.3 × 10–7 , Ka2 = 4.8 × 10–11 for carbonic acid)
(A) CO2
(B) H2CO3
(C) HCO3−
(D) CO32−
(E) C2O42−
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統計： A(1), B(3), C(67), D(2), E(2) #2356360
統計： A(1), B(3), C(67), D(2), E(2) #2356360
