The empirical formula of a chemical substance is ch2. the molar mass of a molecule of the substance is 56.108 g/mol. what is the molecular formula of the chemical substance? a: c2h4 b: c4h8 c: c3h4 d: c6h6

- Molecular formula of the compound is .

Solution:- A molecular formula has n number of empirical formula units, where n is a whole number integer like 1,2,3 and so on.

Molar mass = n(empirical formula mass)

Empirical formula mass = 12.01+2(1.01)

= 12.01+2.02

= 14.03

Molar mass is given as 56.108. Let's plug in the values and calculate the value of n:

56.108 = n(14.03)

n = 4

Value of n is 4 means there are four empirical formula units involved to make the molecular formula of the compound.

So, the molecular formula of the compound is .

we can conclude that the melting point of table salt is above room temperature (it's actually 801 deg c). the melting point of mercury must be below room temperature (- 39 deg c).

i believe the answer is true.