50 ml of 0.2 M HCl is added to 30 ml of 0.1 MKOH solution. Find the pH of the solution.

Explanation

`V_(A)=50 ml " " V_(B)=30 ml`
`N_(A)=0.2N " " N_(B)=0.1 ml`
`V_(A)N_(A) gt V_(B) N_(B)`
`:. N=(V_(A)N_(A)-V_(B)+N_(B))/(V_(A)+V_(B))`
`=(50xx0.2-30xx0.1)/(50+30)`
`=(1-0.3)/(80)=(0.7)/(80)`
`0.00875`
`:. pH=-log[H^(+)]`
`=-log(0.00875)`
`=1.058`