CHEM 130 Lecture Notes - Lecture 38: Acid Strength, Oxoacid, Electronegativity
Document Summary
Chem 130: general chemistry: macroscopic investigations and reaction principles - Lecture 38: acid and base strength & self-ionization of water. The strength of an acid depends on how easily the proton, h+, is lost or removed the an. Two factors in determining relative acid strengths. Polarity of the bond to which the h atom is attached. The h atom should have a positive partial charge. The more polarized the bond is in this direction, the more easily the proton is removed and the greater the acid strength. A hydrogen atom bonded to an oxygen atom generally has a partial positive charge. Strength of the bond, or how tightly the proton is held. Depends on the size of atom x. The larger atom x, the weaker the bond and the greater the acid strength. In going down a column of elements of the periodic table, the size of atom.
