n(HCi)=n(NaOH)
1mL pH=1的盐酸n(HCl)=0.001L*10^-1mol/L=10^-4mol
100ml NaOH溶液n(NaOH)=0.1L*c(NaOH)=10^-4 c(NaOH)=10^-3mol/L
NaOH溶液氢离子的浓度：c(H+)=Kw/c(NaOH)=10^-11
PH=11