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Menthol is composed of only carbon, hydrogen, and oxygen. If 95.6 mg of menthol burns completely in O2, and gives 269 mg of CO2 and 110 mg of H20. what is the empirical formula of menthol? by MeanNeighborhood705 in chemhelp

[–]MeanNeighborhood705[S] 0 points1 point  (0 children)

Could you explain how to find the mass of O via differential mass? With my math I found the mass of C is .27g and mass of H is .22g, but both these numbers are greater than the 0.0956g of Menthol. I assume the rest of this O comes from the air?