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16 October, 21:10

What is the formula weight of magnesium nitrate, mg (no3) 2? express your answer to four significant figures and include the appropriate units?

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  1. 16 October, 23:48
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    The formula weight of a compound is simply equal to the total molar mass.

    The molar mass of each elements are:

    Mg = 24.305 g/mol

    N = 14.0067 g/mol

    O = 15.999 g/mol

    So the total molar mass is:

    formula weight = 24.305 + 2 (14.0067) + 6 (15.999)

    formula weight = 148.3 g/mol
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