What is Empharical formula

• The empirical formula is the simplest formula for a compound which is defined as the ratio of subscripts of the smallest possible whole number of the elements present in the formula. It is also known as the simplest formula.
• An empirical formula for a compound is the formula of a substance written with the smallest integer subscript.
• The empirical formula gives information about the ratio of numbers of atoms in the compound. The percent composition of a compound directly leads to its empirical formula.

Empirical Formula for Molecular formula

• An empirical formula represents the simplest whole number ratio of various atoms present in a compound.
• Molecular formula shows the exact number of different types of atoms present in a molecule of a compound.
• If the mass percent of various elements present in a compound is known, then its empirical formula can be determined.
• Molecular formula can further be obtained if the molar mass is known.