Chemistry · Ch 13 — Hydrocarbons
Aromatic Hydrocarbons
Aromatic Hydrocarbons
Introduces aromatic hydrocarbons through everyday fragrant substances (perfume, vanilla, cinnamon) that share a common chemical thread -- being built of aromatic compounds (Greek 'aroma', pleasant smell) -- while noting that some chemically aromatic compounds have no distinct odour at all, so 'aromatic' in chemistry i …
Classification of Aromatic Hydrocarbons
Aromatic hydrocarbons are classified by how many rings they contain. Monocyclic aromatic hydrocarbons (MAH) have a single ring, e.g. benzene (C6H6) and toluene (C7H8). Polycyclic aromatic hydrocarbons (PAH) have two or more fused rings, e.g. n …
Worked out. Asks the student to calculate the number of rings present in C18H12 -- applying the degree-of-unsaturation approach for a fused polycyclic aromatic hydrocarbon of this formula (matching pyrene-type/four-ring PAH stoichiometry). …