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31 May, 08:36

Ammonia is produced synthetically by the reaction: 2Fe+3Cl2 - - - 2FeCl3

- Is this an exothermic or endothermic process?

- How many moles of NH3 are formed when 1 mol of N2 reacts with hydrogen?

-If 18 x 1023 molecules of H2 react with nitrogen, how many moles of NH3 are produced?

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  1. 31 May, 08:46
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    Ammonia is synthetically by reaction

    N2 + 3H2 - --> 2NH3

    (a) The process is exothermic. This is because heat is released during the formation of NH3 (ammonia)

    (b) The moles of NH3 formed when 1 mole of N2 reacted with hydrogen is 2 moles

    by use of mole ratio between N2 to NH3 wich is 1:2 the moles of NH3 is therefor = 1 x 2/1 = 2 moles

    (c) The moles of NH3 produced if 18 x10^23 molecules of H2 reacted is 1.993 moles of NH3

    calculation

    by use of Avogadro law constant calculate the moles of H2 reacted

    1 mole = 6.02 x 10^23 molecules

    ? = 18 x10 ^23 molecules

    by cross multiplication

    = 1 mole x 18 x10 ^23 / 6.02 x10^23 = 2.99moles of H2

    by use of mole ratio of H2 : NH3 which is 3:2 the moles of NH3 is therefore = 2.99 x/3=1.993 moles
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