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Example 3.1: Computing Molecular Mass for a Covalent Compound

Computing Molecular Mass for a Covalent Compound

Ibuprofen, \(\ce{C13H18O2}\), is a covalent compound and the active ingredient in several popular nonprescription pain medications, such as Advil and Motrin. What is the molecular mass (Da) for this compound?

Solution

Molecules of this compound are comprised of 13 carbon atoms, 18 hydrogen atoms, and 2 oxygen atoms. Following the approach described above, the average molecular mass for this compound is therefore: