Equilibria calculation

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    In an experiment, 9.0 moles of nitrogen and 27 moles of hydrogen were placed into a vessel of volume 10dm3 and allowed to reach equilibrium. It was found that two thirds of the nitrogen and hydrogen were converted into ammonia. Calculate Kc for the reaction
    N2 (g)+3H2 ⇌ 2NH3(g)
    I don't know what I am suppose to do...
    Could you please help me !!

    Thank you very much!
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    (Original post by ucjs2)
    In an experiment, 9.0 moles of nitrogen and 27 moles of hydrogen were placed into a vessel of volume 10dm3 and allowed to reach equilibrium. It was found that two thirds of the nitrogen and hydrogen were converted into ammonia. Calculate Kc for the reaction
    N2 (g)+3H2 ⇌ 2NH3(g)
    I don't know what I am suppose to do...
    Could you please help me !!

    Thank you very much!
    You are supposed to work out the moles of each component at equilibrium using stoichiometry and then apply the equilibrium law to get kc
 
 
 
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