A buffer solution contains \( 0.1 M \) of acetic acid and \( 0.1 M \) of sodium acetate. What wi...

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A buffer solution contains \( 0.1 M \) of acetic acid and \( 0.1 M \) of sodium acetate. What will be its \( \mathrm{pH} \), if \( \mathrm{p} K_{a} \) of acetic acid is \( 4.75 \) ?
[MPPMT 1996; DPMT 2001]
(a) \( 4.00 \)
(b) \( 4.75 \)
(c) \( 5.00 \)
(d) \( 5.25 \)
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