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Ionic Equilibrium question

2023 · 25 Jan · Shift 1 · Q15

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JEE Main
Chemistry
Ionic Equilibrium
2023 · 25 Jan · Shift 1 · Q15

Ionic Equilibrium question

2023 · 25 Jan · Shift 1 · Q15

JEE MainChemistryIonic EquilibriumNumerical+4 / −1

A litre of buffer solution contains 0.1 mole of each of NH

_3

and NH

_4

Cl. On the addition of 0.02 mole of HCl by dissolving gaseous HCl, the pH of the solution is found to be

\underline{\hspace{2cm}}\times

10

^{-3}

(Nearest integer) [Given :

\mathrm{pK_b(NH_3)=4.745}\mathrm{\log2=0.301}\mathrm{\log3=0.477}\mathrm{T=298~K]}

Numerical answer

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