複選題
13. 下列溶液中各粒子濃度關係哪些正確?
(A) 0.1 M HCOOH溶液中:[HCOO- ] + [OH- ] = [H+ ]
(B) 0.1 M (NH4)2SO4溶液中:[NH4 + ] > [SO4 2- ] > [H+ ] > [OH- ]
(C) 0.1 M NaHCO3溶液中: [Na+] + [H+] = [HCO3 -] + [CO3 2-] + [OH-]
(D)等濃度弱酸HX及其鈉鹽NaX等體積混合的溶液中: [Na+ ] > [HX] > [X- ] > [H+ ] > [OH- ]
(E) 0.1 M Na2S溶液中:[S2- ] + [HS- ] + [H2S] = 0.1
詳解 (共 1 筆)
未解鎖
(A)正確。弱酸解離的電荷不滅。(B)正...
