What is the molecular weight of ibuprofen, C₁₃H₁₈O₂?

Question

Quizplus · Accepted Answer

The molecular weight of ibuprofen can be calculated by adding the atomic weights of all its constituent atoms. The molecular formula of ibuprofen is C13H18O2, and its molecular weight is obtained by adding: 
13*(atomic weight of carbon) + 18*(atomic weight of hydrogen) + 2*(atomic weight of oxygen)
= 13*(12.01 amu) + 18*(1.01 amu) + 2*(16.00 amu)
= 206.3 amu. 
Therefore, the correct answer is (B).

What Is the Molecular Weight of Ibuprofen, C13H18O2

What Is the Molecular Weight of Ibuprofen, C₁₃H₁₈O₂