What is the major constituent of smog? Chemistry The Mole Concept Empirical and Molecular Formulas 1 Answer anor277 May 16, 2016 I tnink you mean peroxyacetyl nitrate. Explanation: #C_2H_3NO_5#, #H_3C-C(=O)O-O-N^+(=O)O^-#, must be a hellishly reactive chemical. It is the major contributor to photochemical smog. Answer link Related questions How do empirical formulas and molecular formulas differ? How do you find molecular formula of a compound? What is the chemical formula of a diamond? What is the chemical formula of a carbohydrate? What is the empirical formula for valproic acid? What is the empirical formula of magnesium oxide? Why is the empirical formula not double that of the monosaccharides? Question #5c3b5 What molecular formula represents a carbohydrate? What is the molecular formula of vinegar? See all questions in Empirical and Molecular Formulas Impact of this question 1567 views around the world You can reuse this answer Creative Commons License