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OpenStudy (anonymous):
6.853 mg of a compound consists of purely carbon, hydrogen and oxygen. After undergoing combustion, 19.67 mg of CO2 and 6.391 mg of H2O were obtained. If the molar mass of the compound is 290 g/mole, what is its molecular formula?
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OpenStudy (mos1635):
set CxHyOz the compount write combastion equation calc moles of given compounts stoixiometric ratio of each of them equals ratio of moles you have calc give it a try
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