Structural formulas are diagrams that represent the arrangement of atoms within a molecule. They show how atoms are bonded together and can indicate the types of bonds, such as single, double, or triple bonds. This visual representation helps chemists understand the molecular structure and predict the properties of substances. In organic chemistry, structural formulas are essential for illustrating the relationships between different functional groups, such as alcohols, carboxylic acids, and amines. By using structural formulas, scientists can communicate complex information about molecules clearly and efficiently, aiding in research and education.