已知: X2(g) 溶解过程发生如下反应:
①X2(aq) +X- (aq) (aq) K1=0. 19
②X2(aq) +H2O(1) H+(aq) +X- (aq) + HXO( aq) K2=4. 2 × 10-4
③HXO(aq) H+(aq) +XO-(aq) Ka=3. 2 × 10-8
下列说法正确的是
A.a点溶液中存在: c(H+) >c(X-) >c(XO-) >c(HXO) >c() |
B.b点溶液中存在: c(X-) +c() +c(XO- )>c(H+) +c(Na+) |
C.对比图中两条曲线可知X-对X2的溶解存在较大的抑制作用 |
D.NaX 曲线中,随着X2溶解度的减小,溶液中增大 |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2