If the pH of a mixture of 10 ml of 0.1 M NH4OH and 10 ml of NH4Cl solution is 8, the pKb value of NH4OH is then closest to

a)3 b)5 c)7 d)9

Question

If the pH of a mixture of 10 ml of 0.1 M NH4OH and 10 ml of NH4Cl solution is 8, the pKb value of NH4OH is then closest to a)3 b)5 c)7 d)9

vikas askiitian expert · Answer

in aqueous solution NH 4 OH ----> NH 4 + + OH - NH 4Cl ---------> N H 4 + + cl - K b for NH4OH = [NH4 + ] [OH - ] /NH 4 OH here common ion effect is observed .... K b = [NH4Cl][OH - ] /NH 4OH =[OH - ] (NH 4Cl =NH4OH) H + = 10 -8 (given) OH - =K w/H + =10 -6 K b = 10 -6 Pkb =6

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If the pH of a mixture of 10 ml of 0.1 M NH4OH and 10 ml of NH4Cl solution is 8, the pKb value of NH4OH is then closest to a)3 b)5 c)7 d)9

If the pH of a mixture of 10 ml of 0.1 M NH4OH and 10 ml of NH4Cl solution is 8, the pKb value of NH4OH is then closest to

a)3 b)5 c)7 d)9

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If the pH of a mixture of 10 ml of 0.1 M NH4OH and 10 ml of NH4Cl solution is 8, the pKb value of NH4OH is then closest to a)3 b)5 c)7 d)9

If the pH of a mixture of 10 ml of 0.1 M NH4OH and 10 ml of NH4Cl solution is 8, the pKb value of NH4OH is then closest to a)3 b)5 c)7 d)9

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If the pH of a mixture of 10 ml of 0.1 M NH4OH and 10 ml of NH4Cl solution is 8, the pKb value of NH4OH is then closest to

a)3 b)5 c)7 d)9