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At a certain temperature, the equilibrium constant for the chemical reaction shown is 7.14 × 10-³. At equilibrium, the concentration of AB is 3.125 M, the concentration of BC is 2.525 M, and the concentration of AC is 0.270 M. Calculate the concentration of B at equilibrium. AB(aq) + BC(aq) = AC(aq) + 2 B(aq) [B] = M

At a certain temperature, the equilibrium constant for the chemical reaction shown is 7.14 × 10-³. At equilibrium, the concentration of AB is 3.125 M, the concentration of BC is 2.525 M, and the concentration of AC is 0.270 M. Calculate the concentration of B at equilibrium. AB(aq) + BC(aq) = AC(aq) + 2 B(aq) [B] = M

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter15: Principles Of Chemical Reactivity: Equilibria
Section15.2: The Equilibrium Constant And Reaction Quotient
Problem 15.1CYU: Write the equilibrium constant expression for each of the following reactions in terms of...
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At a certain temperature, the equilibrium constant for the chemical reaction shown is 7.14 × 10-³. At equilibrium, the concentration of AB is 3.125 M, the concentration of BC is 2.525 M, and the concentration of AC is 0.270 M. Calculate the concentration of B at equilibrium. AB(aq) + BC(aq) = AC(aq) + 2 B(aq) [B] = M
Transcribed Image Text:At a certain temperature, the equilibrium constant for the chemical reaction shown is 7.14 × 10-³. At equilibrium, the concentration of AB is 3.125 M, the concentration of BC is 2.525 M, and the concentration of AC is 0.270 M. Calculate the concentration of B at equilibrium. AB(aq) + BC(aq) = AC(aq) + 2 B(aq) [B] = M
Expert Solution
Step 1

The Equilibrium Reaction given in the question -

AB(aq)+BC(aq) <=> AC(aq)+2B(aq)

 

Then, Equilibrium constant -

Kc = concentration of Products/concentration of Reactants

 

Kc = [AC][B]2/[AB][BC]

Here,

Kc = Equilibrium constant = 7.41×10−3

[AC] = Equilibrium concentration of AC Product = 0.270 M

[B] = Equilibrium concentration of B Product = ?

[AB] = Equilibrium concentration of AB reactant = 3.125M

[BC]  = Equilibrium concentration of BC reactant = 2.525 M

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