Equilibrium Question 852

Question: If $ K {sp}(PbSO_4)=1.8\times {10^{-8}} and K{a}(HSO_4^{-})=1.0\times {10^{-2}} theequilibriumconstantforthereaction. PbSO_4(s)+{H^{+}}(aq)\rightarrow HSO_4^{-}(aq)+P{b^{2+}}(aq) $ is

Options:

A) 1.8×106

B) 1.8×1010

C) 2.8×1010

D) 1.0×102

Show Answer

Answer:

Correct Answer: A

Solution:

PbSO4(s)

Pb2+(aq)+SO42(aq)(Ksp) ….(i) HSO4(aq)

H+(aq)+SO42(aq)(Ka) ….(ii) Subtracting equation (ii) from (i), then PbSO4(s)+H+(aq)

Pb2+(aq)+HSO4(aq)(Keq)

$ \therefore K_{eq}=\frac{K {sp}}{K{a}} $

=1.8×1081.0×102=1.8×106



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक