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Ionic Equilibrium question

2020 · Shift 2 · Q18

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PYQ Library
JEE Advanced
Chemistry
Ionic Equilibrium
2020 · Shift 2 · Q18

Ionic Equilibrium question

2020 · Shift 2 · Q18

JEE AdvancedChemistryIonic EquilibriumNumerical+4 / −1

An acidified solution of 0.05 M

Zn^{2+}

is saturated with 0.1 M

H_2S

. What is the minimum molar concentration (M) of

H^+

required to prevent the precipitation of

ZnS

? Use Ksp(

ZnS

) = 1.25

\times

10

-

22 and overall dissociation constant of

H_2S

, Knet = K1K2 = 1

\times

10-21.

Numerical answer

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