Write the Molecular, Structural, and Skeletal Formula for Butanone (Methyl Ethyl Ketone)

In this video, we'll learn how to draw the molecular, structural, and skeletal formulas for butanone, also known as Butan-2-one or methyl ethyl ketone (MEK), which has the molecular formula CH₃COCH₂CH₃.
Starting with the molecular formula, CH₃COCH₂CH₃, we see the number of Carbon, Hydrogen, and Oxygen atoms, as well as the presence of a carbonyl group (C=O), which is characteristic of ketones. However, the molecular formula alone doesn't reveal the arrangement of these atoms.
Next, we'll draw the structural formula for Butanone, illustrating how the Carbon, Hydrogen, and Oxygen atoms are connected. This provides a clearer picture of the molecule's structure, showing the carbonyl group (C=O) located on the second carbon atom in the chain.
Finally, we'll simplify the representation by drawing the skeletal formula, also known as the bond-line formula. This type of drawing only shows the Carbon backbone, with Carbon and Hydrogen atoms implied. The Oxygen atom in the carbonyl group is explicitly shown double-bonded to a Carbon atom.
Each of these representations-molecular formula, structural formula, and skeletal formula-offers unique insights into the molecule. By understanding how to draw and interpret these formulas, you'll gain valuable skills for studying organic chemistry and visualizing molecular structures.