阿摩線上測驗
15. A 0.210-g sample of an acid (molar mass = 192 g/mol) is titrated with 30.5 mL of 0.108 M NaOH to a phenolphthalein endpoint. The formula of the acid is
(A) H3A
(B) H2A
(C) H4A
(D) HA
(E) not enough information given
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統計： A(20), B(0), C(1), D(0), E(0) #2735503
統計： A(20), B(0), C(1), D(0), E(0) #2735503
