At 37.5°C, the equilibrium constant for the reaction 2A(g) + B(g) --- 2 C(g) is Kº=4.50 x 10-4. If the equilibrium

Question

At 37.5°C, the equilibrium constant for the reaction 2A(g) + B(g) ---> 2 C(g) is Kº=4.50 x 10-4. If the equilibrium concentrations
of B and C are respectively 2.70 x 10-1 M and 4.75 x 10-3 M, the equilibrium concentration of A is
a. 0.00431 M
b. 0.215 M
c. none of the other answers are correct
d. 0.121 M
e. 0.431 M

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