Respuesta :
Explanation:
A formula which represents proportions between the elements present in a compound is known as empirical formula.
Whereas a molecular formula is defined as the formula that represents total number of each element present in a compound.
When a molecular formula is able to be reduced to smaller whole-number ratio of the elements then both molecular and empirical formulas are considered to be the same.
Relation between molecular formula and empirical formula is as follows.
Molecular formula = n × Empirical formula
where, n is an integer.
For example, molecular formula of acetic acid is [tex]C_{2}H_{4}O_{2}[/tex] and molecular formula of formaldehyde is [tex]CH_{2}O[/tex].
So, it means molecular formula of acetic acid can also be written as [tex]C_{2 \times 1}H_{2 \times (2)}O_{2 \times 1}[/tex] .
Therefore, we can conclude that both acetic acid and formaldehyde are two molecules that have different molecular formulas but the same empirical formula.
