ORGANIC CHEMISTRY Chapter 3 3.2A The Bronsted-Lowry Definition of Acids and bases o An acid is a substance that can donate(or lose )a proton, o a base is a substance that can accept (or remove a proton Department of Chemistry, Xiamen UniversityORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 3 3.2A The Brønsted-Lowry Definition of Acids and Bases An acid is a substance that can donate (or lose) a proton, A base is a substance that can accept (or remove) a proton