11th grade

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How many moles of nitrogen do you need to make 78 g of ammonia?

  • 11th grade -

    The reaction is
    N2 + 3H2 = 2 NH3

    78 moles of NH3 is 4 moles, since the molecular weight is 17.

    You need half as many moles of N2 as you make of NH3.

  • 11th grade -

    5.20

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