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18 October, 20:10

How many reactant molecules and product gas molecules are in this equation?

N2 (g) + 3H2 (g) + 2NH3 (g)

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  1. 18 October, 20:18
    0
    N₂ = 6.022 * 10²³ molecules

    H₂ = 18.066 * 10²³ molecules

    NH₃ = 12.044 * 10²³ molecules

    Explanation:

    Chemical equation;

    N₂ + 3H₂ → 2NH₃

    It can be seen that there are one mole of nitrogen three mole of hydrogen and two moles of ammonia are present in this equation. The number of molecules of reactant and product would be calculated by using Avogadro number.

    The given problem will solve by using Avogadro number.

    It is the number of atoms, ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

    The number 6.022 * 10²³ is called Avogadro number.

    For example,

    Number of molecules of nitrogen gas:

    1 mol = 6.022 * 10²³ molecules

    Number of molecules of hydrogen:

    3 mol * 6.022 * 10²³ molecules / 1 mol

    18.066 * 10²³ molecules

    Number of molecules of ammonia:

    2 mol * 6.022 * 10²³ molecules / 1 mol

    12.044 * 10²³ molecules
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