Hi, I'm trying to answer the following question but I can't seem to get the right answer: In a combustion analysis, 0.7308 g of an organic compound...

Hi,

I'm trying to answer the following question but I can't seem to get the right answer:

In a combustion analysis, 0.7308 g of an organic compound yielded 2.0840 g CO2 and 0.4874 g H2O. From mass spectrometry, it was found that the molecular weight for the compound is 108 amu. Determine the mass composition of this compound, its empirical formula, and its molecular formula. 

Thanks!