Q.
pH of a mixture containing 0.10 M X- and 0.20 M HX is pKbX- = 4
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a
4 + log 2
b
4 - log 2
c
10 + log 2
d
10 - log 2
answer is D.
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Detailed Solution
pOH=pKb + log SaltAcid == 4 + log 0.20.1∴ pOH = 4+log 2 and pH = 10-log 2
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