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Mass of carbon =(12/44)X1.42=0.39g So percent mass of carbon= (0.39/1)X100 = 39 Mass of oxygenhydrogen = (2/18)X0.872 =0.097g So percent mass of hydrogen = (0.097/1)X100 = 9.7

P.S.: Please always attempt such simple questions at home; you are sure to get the answer, no?

Mass of carbon =(12/44)X1.42=0.39g So percent mass of carbon= (0.39/1)X100 = 39 Mass of oxygen = (2/18)X0.872 =0.097g So percent mass of hydrogen = (0.097/1)X100 = 9.7

P.S.: Please always attempt such simple questions at home; you are sure to get the answer, no?

Mass of carbon =(12/44)X1.42=0.39g So percent mass of carbon= (0.39/1)X100 = 39 Mass of hydrogen = (2/18)X0.872 =0.097g So percent mass of hydrogen = (0.097/1)X100 = 9.7

P.S.: Please always attempt such simple questions at home; you are sure to get the answer, no?

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Mass of carbon =(12/44)X1.42=0.39g So percent mass of carbon= (0.39/1)X100 = 39 Mass of oxygen = (2/18)X0.872 =0.097g So percent mass of hydrogen = (0.097/1)X100 = 9.7

P.S.: Please always attempt such simple questions at home; you are sure to get the answer, no?