问题
选择题
常温下,0.05 mol/L的Ba(OH)2溶液,pH为
A.13
B.12
C.1l
D.10
答案
答案:A
正确答案:A
C(H+)=Kw/c(OH―)=10-14/(0.05×2)=10-13mol/L, pH=13
常温下,0.05 mol/L的Ba(OH)2溶液,pH为
A.13
B.12
C.1l
D.10
答案:A
正确答案:A
C(H+)=Kw/c(OH―)=10-14/(0.05×2)=10-13mol/L, pH=13