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10 questions
Glycerol has a molar mass of 92.09 g/mol. A 100. g sample is 39.12 g C, 8.75 g H, and 51.12 g O. What is the molecular formula for glycerol?
C2H3O2
CH2O
C2H4O2
C3H8O3
What is the empirical formula of a 100. g sample of a compound containing 18.7 g of Lithium, 16.3 g of carbon and 65.0 g of oxygen?
CO2Li3
Li2CO3
Li3CO2
LiCO5
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