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24 April, 19:10

Write and balance the chemical equations for the synthesis of the triiodide and pentaiodide compounds.

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  1. 24 April, 22:21
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    Triiodide preparation:

    3I2 + 4NH4OH → NI3 + 3NH4I + 4H2O

    Pentaiodide preparation:

    AS4 + 10I2 → 4ASI5

    Explanation:

    Nitrogen triiodide is an inorganic compound with formula NI3. It is an extremely sensitive explosive. The reaction obtained from iodine and ammonia is:

    3I2 + 4NH4OH → NI3 + 3NH4I + 4H2O

    Polyiodides can be manufactured by adding stoichiometric amounts of I2 to solutions containing I - and I3-, it requires the presence of cations to stabilize them. For example, in the preparation of pentaiodoarsorane from arsenic tetramer with iodine.

    AS4 + 10I2 → 4ASI5
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