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17 March, 22:35

Determine the molecular formula of a compound that is 49.48% carbon, 5.19% hydrogen, 28.85% nitrogen, and 16.48% oxygen. the molecular weight is 194.19 g/mol.

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  1. 17 March, 22:53
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    To determine molecular formula, we first need to find out its empirical formula,

    Carbon. Hydrogen. Nitrogen. Oxygen

    Mass. 49.98g. 5.19g. 28.85g. 16.48g

    Mole. 4.165. 5.19. 2.06. 1.03

    Divide 4. 5. 2. 1

    by

    smallest

    So by comparing the mole ratio from the table above, i hope u understand the table

    The empirical formula is C4H5N2O

    given molecular mass = 194.19g

    so

    (C4H5N2O) n = 194.19

    (48+5+28+16) n=194.19

    n = 2

    molecular formula = C8H10N4O2
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