Chemistry - Ionic Equilibrium Question with Solution | TestHub

ChemistryIonic EquilibriumMiscellaneous/MixedEasy2 minPYQ_2020

ChemistryEasynumerical

HX is a weak acid $(K_{a} = 1 0^{- 5})$ . It forms a salt NaX [0.1 M (aq)] on reacting with aqueous caustic soda solution. The percentage of hydrolysis of NaX is $(0.01 \times n) %$ , where n is

Answer:

1.00

Solution:

For a salt of a weak acid and strong base degree of hydrolysis is given as
$h = \sqrt{\frac{K_{w}}{K_{a} . C}}$
$= \sqrt{\frac{1 0^{- 14}}{0.1 \times 1 0^{- 5}}} = 1 0^{- 4}$
% of hydrolysis $= 100 \times 1 0^{- 4} = 0.01 %$

Stream:NTA_ABHYASSubject:ChemistryTopic:Ionic EquilibriumSubtopic:Miscellaneous/Mixed

⏱ 2mℹ️ Source: PYQ_2020

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