1.

The percentage of Carbon, Hydrogeon and Oxygen in an organic substance are 40, 6.666 and 53.34 respectively. Molecular mass of the compound is 180 g mol^(-1). Find the value of integal number.

Answer»

6
2
1
4

Solution :
`:.` EMPIRICAL formula `= CH_(2)O`
and Empirical formula MASS `= C + 2H + O`
`= 12 + 2+ 16 = 30`
Integral no. `= ("molecular mass")/("empirical formula mass") = (180)/(30) =6`


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