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Multiple Choice
The equilibrium constant, K, for 2 NO (g) + O2 (g) ⇌ 2 NO2 (g) is 6.9 x 102.
What is the [NO] in an equilibrium mixture of gaseous NO, O2, and NO2 at 500 K that contains 1.5 x 10 –2 M O2 and 4.3 x 10 –3 M NO2?
A
4.15 x 10-4 M
B
1.34 x 10-3 M
C
2.04 x 10-2 M
D
1.80 x 10-6 M
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