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Question
Dissociation constant of NH4OH is 1.8 × 10−5 the hydrolysis constant of NH4Cl would be ____________.
Options
1.8 × 10−19
5.55 × 10−10
5.55 × 10−5
1.80 × 10−5
Solution
Dissociation constant of NH4OH is 1.8 × 10−5 the hydrolysis constant of NH4Cl would be 5.55 × 10−10.
Explanation:
Kh = `("K"_"w")/("K"_"b") = (1 xx 10^-14)/(1.8 xx 10^-5)`
= 0.55 × 10−9
= 5.5× 10−10
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