the percentage of carbon, hydrogen and oxygen in an organic substance are 54.55, 9.06 and 36.39 respectively, find the empirical formula and molecular formula. (molecular mass of organic substance =88 gram per mole)

the percentage of carbon, hydrogen and oxygen in an organic substance

1.	the percentage of carbon, hydrogen and oxygen in an organic substance are 54.55, 9.06 and 36.39 respectively, find the empirical formula and molecular formula. (molecular mass of organic substance =88 gram per mole)
Answer» Let amount of organic = 100 gmamount of carbon = 54.55 gamount of hydrogen = 9.09 gAmount of OXYGEN = 36.26 gnumber of MOLE of carbon = 1234.55 =4.54583number of mole of hydrogen = 1.0189.09 =9number of mole of oxygen = 1636.26 =2.264.54833:9:2.262:4:1organic COMPOUNDS Empirical formula =C2H4OMolecular WEIGHT = 24+4+16=44 (for empirical)Molecular weight = 2× vapour density =2×44=88 GTO molecular formula be = C4H8O2