Unformatted text preview: 8 O 16 H 32 then the empirical formula is SiO 2 H 4 . Since the molecular formula is a multiple of the empirical formula, the molecular weight must be a multiple of the empirical weight. The weight of the empirical formula is 46. What multiple is 138 of 46? 138/46 = 3. That means the molecular formula must be three times the empirical formula or N 3 O 6 ....
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- Fall '08
- Mole, Molecular formula, Molecule, Ion, Atomic mass unit