Distinguish Between Empirical, Molecular and Structural Formulas

• Empirical Formula is the simplest Whole Number ratio of the atoms in a Compound The Empirical Formula of C2H6 is CH3
• Limited use on its own as it does't show the actual atoms in the Molecule 
• Molecular Shows the actual Number of atoms of each element present
• It is quite of limited Value as the properties of a compound are determined not only but the atoms it contains, but also by how they are arranged in relation to each other and in space
• Structural shows every bond and atom in either 2D or in 3D representing all bond angles 
• R is used for side groups that don't need to be represented such as methyl or ethyl side chains
• Automatic compounds contain a benzene ring C6H6

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