A compound containing only C, H, and O, was extracted from the bark of the sassafras tree. The combustion of 47.3  mg produced 128  mg of CO2and 26.3  mg of H2O. The molar mass of the compound was 162 g/mol. Determine its empirical and molecular formulas. I am really just not sure how to start this problem. I know how I would do this if I were given percentages of material but since the starting material is less mass than the produced materials I am not sure how to account for the oxygen that must have gone into the products.  I know I need to find how number ratios of moles so would I just turn the CO2 and H2O into moles and then compare to the molar mass? help!!

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Q: how do i do this

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.