The Chemistry of Acids and Bases - PowerPoint PPT Presentation

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The Chemistry of Acids and Bases
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The Chemistry of Acids and Bases

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  1. The Chemistry of Acids and Bases

  2. Acids and Bases: CharacteristicsAt the conclusion of our time together, you should be able to: Give examples of acids and bases List some properties of acids and bases Compare and contrast the characteristics of acids and bases

  3. Acid and Bases

  4. Acid and Bases

  5. Acid and Bases

  6. Acids Have a sour taste. Ex. Vinegar is a solution of acetic acid. Citrus fruits contain citric acid. React with certain metals to produce hydrogen gas. React with carbonates and bicarbonates to produce carbon dioxide gas Bases Have a bitter taste. Feel slippery. Many soaps contain bases.

  7. Some Properties of Acids • Produce H+ (as H3O+) ions in water (the hydronium ion is a hydrogen ion attached to a water molecule) • Taste sour, Corrode metals, Electrolytes • React with bases to form a salt and water • pH is less than 7, Turns blue litmus paper to red “Blue to Red A-CID”

  8. Some Properties of Bases • Produce OH- ions in water • Taste bitter, chalky, are electrolytes • Feel soapy, slippery • React with acids to form salts and water • pH greater than 7 • Turns red litmus paper to blue “Basic Blue”

  9. Acids and Bases: CharacteristicsLet’s see if you can: Give examples of acids and bases List some properties of acids and bases Compare and contrast the characteristics of acids and bases

  10. Get Your Clicker!!!

  11. Which of the following is not a characteristic of an acid? • Tastes sour • pH is lower than 7 • Reacts with a base to form salt and water • Turns litmus paper blue • Produces H+ ions in water • All answers are correct

  12. Which of the following is not a characteristic of a base? • Tastes bitter • pH is higher than 7 • Reacts with an acid to form salt and water • Turns litmus paper blue • Produces OH- ions in water • All answers are correct