general, orga chemistry # 9.29 question The equilibrium constant, Kc, for the re
ID: 918791 • Letter: G
Question
general, orga chemistry # 9.29 question The equilibrium constant, Kc, for the reaction of H, and l: is 54 at 425 degreesC. If the equilibrium mixture contains 0.015 M I. and 0.030 M HI. what is the concentration of H:? H2(8) + h(g) = 2HI(g) 9J0 The equilibrium constant, Kc, for the decomposition of N.Oj is 4.6 times 10 If the equilibrium mixture contains 0.050 M N02, what is the concentration of N_204? N_204(s) 2NO_2(g) 5 9 JI The equilibrium constant. Kc, for the decomposition crt NOJ is 2.0 at 100 degrees C. If the system at equilibrium contains 2.0 NO and 1.0 M Br2, what is the concentration of NOBr 2NOBr() = 2NO(g) + Br2(g) 932 The equilibrium constant. Kc, for the reaction of H: 8 y i 7 m2 r if the c%/cm at muilibrium comExplanation / Answer
the given reaction is
H2 + I2 ---> 2HI
the equilibrium constant is given by
Kc = [HI]^2 / [I2] [H2]
given
Kc = 54
[HI] = 0.03
[I2] = 0.015
using these values
we get
Kc = [HI]^2 / [I2] [H2]
54 = [0.03]^2 / [0.015] [H2]
[H2] = 1.11 x 10-3
so
the concentration of H2 is 1.11 x 10-3
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