The chemical formula of ibuprofen is C22H₂N₂O. Ibuprofen is an over-the-counter drug for treating pain and inflammation. It's also very effective with migraine headaches whose major side effect is stomach irritation. Its molecular structure is given on the right. The ball-and-stick structure model is given underneath. a. How many moles of ibuprofen are in 43.9 g of ibuprofen? b. How many moles of ibuprofen, are in 7.66x1024 molecules of ibuprofen? c. How many nitrogen atoms are in 8 molecules of ibuprofen? d. How many hydrogen atoms are in 328 grams of ibuprofen?

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.