Question

计算0.1mol/LBa(OH)2溶液的PH PH不是用c(H+)来算吗?给碱怎么算呢?

Answer 1

c(OH-) = 0.2 mol/L

c(H+) = Kw / c(OH-) = 1×10^-14 / 0.2 = 5×10^-14 mol/L

pH = - lg c(H+) = 13.3

用水的离子积Kw求H+浓度