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16 January, 07:03

How many grams of hydrogen are needed to produce 15.0 mol of ammonia if the reaction goes to completion?

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  1. C
    16 January, 07:49
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    Reaction involved in present system is : N2 + 3H2 → 2NH3

    In present reaction, 1 mol of N2 react with 3 moles of H2 to generate 2 moles of NH3

    Thus, 2 moles of NH3 ≡ 3 moles of H2

    Therefore, 15 moles of NH3 ≡ (3X15) / 2 = 22.5 moles of H2.

    We know that, 1 mole of H2 ≡ 2 g

    Therefore, 22.5 moles of H2 ≡ 2 X 22.5 = 45 g

    Thus, 45 g of hydrogen are needed to produce 15.0 mol of ammonia, if the reaction goes to completion
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