For the reaction A ( aq ) ⇌ B ( aq ) + 2 C ( aq ) K c at 2 5 ∘ C is 4 × 1 0 − 19 M 2 .Concentration of B in a solution that had originally C and B concentration of 0.1 M and 0.03 M respectively is :

Question

For the reaction A ( aq ) ⇌ B ( aq ) + 2 C ( aq ) K c ​ at 2 5 ∘ C is 4 × 1 0 − 19 M 2 .Concentration of B in a solution that had originally C and B concentration of 0.1 M and 0.03 M respectively is :

TestHub · Accepted Answer

B ( a q ) ​ + 2 C ( a q ) ​ ⇌ A ( a q ) ​ K c ′ ​ = 4 1 0 19 ​ M − 2 (very high) t=0 0.03 M 0.1 M 0 t=t x 0.1 − 0.6 0.03 = 0.04 K c ′ ​ = [ B ] [ C ] 2 [ A ] ​ 4 1 0 19 ​ = x ( 0.04 ) 2 0.03 ​ [ B ] e q ​ = x = 1 0 14 × 0.04 × 0.04 0.03 × 4 × 100 ​ = 7.5 × 1 0 − 18 M

Chemistry - Chemical Equilibrium Question with Solution | TestHub

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