Question

Which of the following pairs does not share the same empirical formula?

C2H6 and C6H18

C3H6O3 and C2H4O2

C3H6 and CH4

CH2O and C3H6O3

Answer 1

C3H6 and CH4 does not have the same empirical formula.

to get the empirical formula, of a compound, firstly determine the lowest number of atoms present in the formula, and then, divide the formula with that lowest number.

take the case of C2H6

lowest number = 2.
dividing the formula by two, gives the empirical formula as CH3..

i hope this helps.

Answer 2

thank u

Answer 3

welcome!