Acids & Bases Introduction

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Presentation transcript:

Acids & Bases Introduction 9-4 Naming & Writing Formulas for Acids 19.1-Acid-Base Theories 19.2 Hydrogen Ions and Acidity

Properties of Acids Acids are substances that increase the concentration of the H+ ion in an aqueous solution. Acids generally have the form of HA, where A is some anion (Remember polyatomic ions). Example: HCl where A = Cl- Taste sour and tart Corrode metals Electrolytes (conduct electrical current in solution) React with bases to form a salt and water pH is less than 7

Examples of Naming Acids NOTE: Table 23.6 Page 741 organic acids examples.

Examples of Common Acids NOTE: Table 23.6 Page 741 organic acids examples.

Bases Bases are substances that increase the concentration of the OH- ion in an aqueous solution. Taste bitter electrolytes (conduct electrical current in solution) Feel soapy, slippery React with acids to form salts and water pH greater than 7

Names & Formula of Common Bases NaOH sodium hydroxide KOH potassium hydroxide (liquid soap) Ba(OH)2 barium hydroxide (stabilizes plastics) Mg(OH)2 magnesium hydroxide Al(OH)3 aluminum hydroxide (antacid)