Question

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 1

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.

Answer 2

Answer:

see the attachment ✌️❣️