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22 May, 02:31

Choose all resonance structures of ocn - with right formal charges in each. check all that apply.

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  1. 22 May, 04:19
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    Formal charge on an element in a molecule is calculated by using following formula,

    Formal Charge = [# of Valence Electrons] - [Electrons in Lone Pairs +

    1/2 the # of Bonding Electrons]

    Example:

    Let's calculate the formal charge present on Oxygen atom in Structure 1. The oxygen atom has,

    6 Valence shell electrons

    2 Bond Pair Electrons

    6 Lone pair Electrons

    So,

    Formal Charge = [6] - [6+2/2]

    Formal Charge = 6 - 7

    Formal Charge = - 1

    You can calculate formal charges on all atoms in all three structure. I have drawn the structures with formal charges.
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