1. O 2 vs CO binding a heme

2. Understand and identify weak and strong electrolytes OWL – 7.6 o Strong electrolyte Dissolve & 100% Dissociate Strong electrolyte o Weak electrolyte Dissolve & <100% Dissociate Weak electrolyte o Nonelectrolyte Dissolve & None Dissociate Nonelectrolyte

3. Acid: Acid: a substance that produces H 3 O + ions in aqueous solution. Base: Base: a substance that produces OH - ions in aqueous solution.

4. Weak Acid Strong Acid Strong Base Weak Base

6. pH = -log [H 3 O + ] –Acidic solution: –Acidic solution: pH is less than 7.0. –Basic solution: –Basic solution: pH is greater than 7.0. –Neutral solution: –Neutral solution: pH is equal to 7.0. pOH = -log[OH - ] pH + pOH = 14

7. pH buffer:pH buffer: a solution that resists change in pH when limited amounts of acid or base are added to it. –A pH buffer as an acid or base “shock absorber.” –The most common buffers consist of approximately equal molar amounts of a weak acid and the acids conjugate base.

8. Buffer Solutions, Function Case 1: HCl is added to pure water. Case 2: HCl is added to a solution of a weak acid H 2 PO 4 - and its conjugate base HPO 4 2-.