Problem: Using the Equilibrium constant The reversible chemical reaction A + B ⇌ C + D has the following equilibrium constant. Kc = [C][D]/[A][B] = 2.7 Part A Initially, only A and B are present, each at 2.00 M. What is the final concentration of A once equilibrium is reached?Express the molar concentration numerically using two significant figures.

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Using the Equilibrium constant 

The reversible chemical reaction 

A + B ⇌ C + D 

has the following equilibrium constant. 

Kc = [C][D]/[A][B] = 2.7 

Part A 

Initially, only A and B are present, each at 2.00 M. What is the final concentration of A once equilibrium is reached?

Express the molar concentration numerically using two significant figures.

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