常温,pH=13的NaOH与pH=1的H2SO4混合后,pH=2,求两者的体积比

pH=-lg[H+]
pH=13 NaOH(aq) [OH-]=0.1mol/L
pH=1 H2SO4(aq) [H+]=0.1mol/L
设NaOH xL H2SO4 yL
根据H+ +OH-=H2O
则有(0.1y-0.1x)/(x+y)=0.01
0.09y=0.11x
x:y=9:11