Q.
PKa of acetic acid is 4.74. The concentration of CH3COONa is 0.01M. The pH of CH3COONa solution is
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a
10.37
b
8.37
c
7.0
d
4.37
answer is B.
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Detailed Solution
PH of a salt of weak acid and strong base is given as PH=12PKw+PKa+logC0⇒PH=12[14+4.74-2]=8.37
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