A.若混合后溶液pH=7,则c(NH4+)=c(Cl-) |
B.若a=2,则c(Cl-)>c(NH4+)>c(H+)>c(OH-) |
C.若a=0.5,则c(NH4+)>c(Cl-)>c(OH-)>c(H+) |
D.若混合后溶液满足c(H+)=c(OH-)+c(NH3·H2O),则可推出a=1 |
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