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12. (5 pts) The empirical formula of a compound is C2H4N2O2. The compound has a molar mass of 486.42g/mol; determine the molecular formula. 13. (4

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12. (5 pts) The empirical formula of a compound is C2H4N2O2. The compound has a molar mass of 486.42g/mol; determine the molecular formula. 13. (4 pts) How many significant figures are in the following measurements a. 0.0034501g b. 10.0405mL C. 8000kg d. 4.3000cm

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