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Calculate the pH of a solution which con...

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

Text Solution

Verified by Experts

The correct Answer is:
C
`HCl+NaOH to NaCl+H_(2)O`
Meq. before `10 xx 1 10 xx 2`
`"Reaction =10 =20 0 0"`
`"Meq. After Reaction =0 10 10 10"`
`[OH^(-)]" left from NaOH"=10/20=0.5M`
`pOH=-log OH^(-)=-log 0.5`
pOH =0.3
pH =13.7
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