已知:①HY是一元强酸,BaY2易溶于水
②0.192=0.0361,0.382=0.1444
A.NaHX溶液显碱性 |
B.溶度积Ksp(BaX)≈6.18×10-21mol2•L-2 |
C.b点:2c(Ba2+)+c(H+)=2c(X2-)+c(HX-)+c(OH-)+c(Y-) |
D.若0.1molBaX溶于25mLxmol•L-1HY溶液中得到c点溶液,则x≈8.38 |
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