CHMB41H3 Chapter Notes - Chapter 2: Pi Bond, Diethyl Ether, Aluminium Chloride
Document Summary
Chapter 2 acids & bases: central to understanding organic chemistry. Equilibrium constant (keq) the degree to which an acid (ha) dissociates in an aq solution. [ ] = conc of reactants & products in (mols/l) The degree to which an acid (ha) dissociates r usually determined in dilute soln. Acid dissociation constant (ka) eqm constant multiplied by the molar [ ] of water. Eqm rewritten from combining keq and h2o constants. The larger the ka, the stronger the acid, thus the greater the tendency to lose a proton. Hcl : ka = 107 is stronger acid than acetic acid : ka = 1. 74 x 10-5. The strength of an acid generally indicated by pka values, rather than ka values. The stronger the acid, the smaller the pka value. Ph-the [ ] of h+ ions in solution, can be either [h+] / [h3o+] Lemon juice is more acidic than coffee, rain more acidic than milk.
