
Concept explainers
Interpretation:
The difference between an empirical formula and molecular formula should be predicted.
Concept introduction:
The representation of atoms of a compound in simple whole number ratio is known as empirical formula.
Molecular formula or Chemical formula represents the type and number of atoms present in the molecule using atomic symbol and numerical subscripts.

Answer to Problem 156A
The difference between an empirical formula and molecular formula is represented as follows:
EMPIRICAL FORMULA | MOLECULAR FORMULA |
The simplest form of expressing an elemental composition of the compound is termed as empirical formula. | The actual |
It is obtained by the mass percentage or mass of the elements present in the compound. | It is obtained by the empirical formula of compound or also by the mass percentage or mass of the elements present in the compound. |
It is the simplest form of the compound. | It is multiple of the empirical formula. |
For example, the empirical formula of hydrogen peroxide is HO. | For example, the molecular formula of hydrogen peroxide is H2O2. |
Explanation of Solution
The difference between an empirical formula and molecular formula is represented as follows:
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