[化學] 99台聯大A1 19 20
19.How many mmoles of HCL must be added to 100ml of a 0.10M solution of
methylamine(pKb=3.36)to give a buffer having a PH of 10?
(A)8.1 (B)18.7 (C)20.0 (D)41.5 (E)12.7
Ans:(A)8.1
20.Of energy, work, enthalpy, and heat, how many are stable functions?
(A)0 (B)1 (C)2 (D)3 (E)4
Ans:(C)2
請問是哪兩個呢? 感激不盡
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