Question

5.88 moles of nitrogen and 16.2 moles of oxygen are mixed until the equilibrium is established 11.28 moles of nitric acid are formed calculate the value of equilibrium constant
Do you have an equation to use? I don't see how you can get HNO3 out of N2 and O2.
Nitric oxide is formed and the equation is
N2 + O2 <--> 2NO
Calculate the equilibrium constant now?

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