[Nishka]

1 N2 + 3 H2 -> 2 NH3
(Balanced Reaction)

Calculate the % yield of a reaction of 40L of N2 gas at 60 degrees Celsius and 200 kPa with 20g of 90% pure H2 if 10g of NH3 are actually produced.


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So yeah, long story short, I know how to do this with just moles, but then they added gas laws into the mix; now I don't have a clue as to how to even start this equation let alone get the correct answer. Explaining the procedure would do wonders for me, as this is the only gas law problem that I can't do. Thanks.

[Borek]

I know how to do this with just moles

Then it is trivial: just convert everything to moles first and you are home.

[Big-Daddy]

mass = moles * Mr and moles * R * temperature = partial pressure * volume occupied