an organic compound containing oxygen carbon nitrogen and hydrogen contains 20% carbon 6.7% hydrogen 40 6.67% nitrogen its molecular mass was found to be 60 find the molecular formula of the compound

an organic compound containing oxygen carbon nitrogen and hydrogen con

1.	an organic compound containing oxygen carbon nitrogen and hydrogen contains 20% carbon 6.7% hydrogen 40 6.67% nitrogen its molecular mass was found to be 60 find the molecular formula of the compound
Answer» CO(NH2)2.Explanation:The moles of the CARBON will be 20/12 which will begin 1.6 mol. The moles of HYDROGEN will be 6.7/1 which is 6.7 mol. And the moles of nitrogen will be 46.67/14 which is 3.33 mol.So, if we take the total of 100 GRAM of the compound. Then moles of oxygen will be (100-20-6.7-46.67)/16 which will be 26.63/16 = 1.66 mol.So, the simplest ratio will be for carbon 1.6/1.6 = 1 , for hydrogen 6.7/1.6= 4, for nitrogen 3.33/1.6 =2 and for oxygen its 1.So, the empirical formulae is CH4N2O. Now the empirical formulae weight is 12+4+28+16=60. So, the MOLECULAR weight is 60/60 which is 1. So, molecular formulae same as empirical formulae CO(NH2)2.