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18 mL of mixture of acetic acid and sodi...

18 mL of mixture of acetic acid and sodium acetate required 6 mL of 0.1 M NaOH for neutralization of the acid and 12 mL of 0.1 M HCI for reaction with salt, separately. If `pK_(a)` of the acid is 4.75, what is the pH of the mixture ? [log 2=0.3]

A

`5.05`

B

`4.75`

C

`4.5`

D

`4.6`

Text Solution

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The correct Answer is:
a
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