1.

Calculate the `pH` of a solution which contains `10 ml` of `1 M HCl` and `10 ml` of `2M NaOH`A. `11.7`B. `12.7`C. `13.7`D. `10.7`

Answer» Correct Answer - C
`{:(,HCl,+,NaOH,to,NaCl,,H_(2)O),("Meq. before",10xx1,,10xx2,,,,),("Reaction",10,,20,,0,,0),("Meq.After",0,,10,,10,,10),("Reaction",,,,,,,):}`
`[OH^(-)]` left from `NaOH=(10)/(20)=0.5 M`
`pOH= -logOH^(-)= -log0.5`
`pOH=0.3`
`pH=13.7`


Discussion

No Comment Found

Related InterviewSolutions