`20` mL of `0.2` M sodium hydroxide is added to `50` mL of `0.2` M acetic acid solution to give `70` mL of the solution.

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Q 2626023871.     `20` mL of `0.2` M sodium hydroxide is added to `50` mL of `0.2` M acetic acid solution to give `70` mL of the solution.
What is the `pH` of this solution?

Calculate the additional volume of `0.2` M `NaOH` required to make the pH of the solution `4.74`. (Ionisation constant of
`CH_3COOH = 1.8 xx 10^(-5)`.
JEE 1982

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(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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