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Acids And Bases

Acids And Bases. The pH Scale. Acids. Acids are chemicals that release hydrogen. The faster a chemical releases hydrogen, the more acidic the chemical is. Strength in an acid does not refer to how well it melts something that is called corrosive.

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Acids And Bases

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  1. Acids And Bases The pH Scale

  2. Acids • Acids are chemicals that release hydrogen. • The faster a chemical releases hydrogen, the more acidic the chemical is. • Strength in an acid does not refer to how well it melts something that is called corrosive. • Strength refers to how easily a hydrogen is released. • Hydrofluoric Acid will seep into your bones, it takes hours, it will liquefy them and the destroy the surrounding tissue. • It can also liquefy glass.

  3. Not all acids are bad, they won’t all destroy or melt your skin. • Egg yolks, coffee, orange juice, vinegar, soda, lemon juice.

  4. Properties of Acids • Taste sour. • Think vinegar or lemon juice. • Reach with certain metals (Zn, Fe, etc.) to produce hydrogen gas. • Hydrogen gas is explosive, yeah!! • React with bases to form salts and water.

  5. Bases • A substance that produces OH groups. • The more OH Groups the more basic the chemical becomes. • Bases instead of being called corrosive are called caustic, it means the same thing, it can make you melt, ewwh.

  6. Not all Bases are bad. • Cabbage, carrots, almonds, apples, celery, lettuce green tea, olive oil, broccoli, spinach.

  7. Properties of Bases • Taste bitter • Feel slippery or soapy • React with oils and grease • React with acids to form salts and water

  8. pH scale is simple • 0 – 6.9 = Acid • 7.0 = Neutral • 7.1 – 14 = Base • If you compare two acids and one acid is a 3 on the pH scale and the other acid is a 4 on the pH scale, then the acid with a rating of a 3 is 10X stronger then the pH of 4. • A ph of 2 is 100X stronger acid then a 3.

  9. So think about this? • How much stronger is an acid that has a pH of 1 compared to an acid with a pH of 3? • How much stronger is a base that has a pH of a 11 compared to a base with a pH of a 8?

  10. Fairy Princess Street says, “You can use any acid you want but you can’t burn off my arm hair!”

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