Ezra Trujillo P.4 -- CP Chem 2/19/04 Chapter 18 Outline * Section 1-2 1) Defining Acids and Bases a. Properties of A/B - Acids react to metals, bases don’t - Acids are sour/tart, bases are bitter - Acids burn flesh, bases are slippery - Both are very conductive (electrically) - Can be differentiated with ‘indicators’ - They can neutralize each other b. The Arrhenius Definition - Acids dissolve water to make hydrogen ions, bases will make hydroxide ions. c. The Brønsted-Lowry Definition - “An acid is any substance that can donate H+ ions” - “A base is any substance that can accept H+ ions” 2) Determining the Strength a. Strong & Weak Acids/Bases - Affect the amount of water an acid could dissociate b. The Acid/Base Dissociation Constant - Similar to Keq but with the acid/base defining it. Found the same. Above 1 is strong, below it is weak.