TYPES OF ORGANIC FORMULAS

Organic chemists have a number of ways to write the formula for organic molecules.

1. Empirical formula: This formula gives the minimum  ratio of atoms in the compound. sometimes the empirical formula is equal to the molecular formula.Ex: CH₃ may represent CH₃CH₃ or (CH₃)x2
2. Molecular formula: Shows the total number of atoms in a given compound Ex: CH₃CH₃ stands for C₂H₆
3. Condensed formula: Shows no bonds in the molecule Ex: CH₃CH₂CH₂CH₂CH₂CH₂CH₃
4. Displayed or developed formula: Show all bonds 
5. Skeletal formula: Use zigzag lines to represent molecules where each summit stands for carbon atom.