PH=14,氢氧根浓度是多少
问题描述:
PH=14,氢氧根浓度是多少
答
PH = -lgc(H+) = 14
c(H+) = 10^-14( mol/L)
c(OH-) = kw/c(H+) = 10^-14/10^-124 = 1( mol/L)
∴ 氢氧根浓度是 1摩尔每升.