Chemistry A: Physical Chemistry - Acids and bases PAPER 1

Brønsted-Lowry acid - Ans .proton donor Brønsted-Lowry base - Ans .proton acceptor Acid-base equilibria - Ans .is the transfer of protons pH - Ans .-log10[H+] [H+] - Ans .10^-pH strong acid - Ans .HCl --> H+ + Clfully dissociates in water strong base - Ans .A base that dissociates completely into ions in solution. Weak acids - Ans .CH3COOH(aq) <--> CH3COO-(aq) + H+(aq) creates an equilibrium in water weak bases - Ans .Substances capable of accepting hydrogen but do not completely ionize in solution ionic product of water, Kw - Ans .[H+][OH-] varies with temperature why is water not acidic? - Ans .[H+] = [OH-] pKa - Ans .-log10 Ka Ka - Ans .10^-pKa ka = [H+][A-]/[HA] with units being calculated pH curve: Strong acid and strong base - Ans . pH curve: Weak acid and strong base - Ans . pH curve: Strong acid and weak base - Ans . pH curve: Weak acid and weak base - Ans . indicators for acid base titrations - Ans .depending on the solution being used the indicator needs to be carefully chosen to fit the pH curve buffer solution - Ans .a solution that has the ability to resist small changes in pH upon the addition of small amounts of either acid or base Acidic buffer solutions - Ans .Contain a weak aci