A.室温下,醋酸的电离常数约为10-5 |
B.A点时加入氢氧化钠溶液的体积为20.00mL |
C.若B点为40 mL,所得溶液中:2c(Na+)=c(CH3COO-)+c(CH3COOH) |
D.滴定过程中一定存在:0.01 mol/L+c(OH-)=c(Na+)+c(H+)+c(CH3COOH) |
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