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Unformatted text preview: proportions by weight. 9. The difference between the empirical and the molecular formula is the subscripts. The molecular formula gives the number of atoms present in the compound. The empirical formula gives the ratio of atoms in a compound. 10. 72.83g of CaH 2 11. 12. Empirical formula: C 4 H 4 O, Molecular formula: C 8 H 8 O 2 13. fs 14. 6.05 x10 21 atoms of sodium...
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- Fall '10