1 / 12

Acids & Bases

Acids & Bases. By Robert McGee. Our Goals for today. To determine the difference between Acids & Bases Discuss the importance of studying Acids & Bases Perform an experiment dealing with Acids & Bases. What is the pH scale?. The pH scale measures how acidic or basic a solution is.

minerva-stephens
Download Presentation

Acids & Bases

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Acids & Bases By Robert McGee

  2. Our Goals for today • To determine the difference between Acids & Bases • Discuss the importance of studying Acids & Bases • Perform an experiment dealing with Acids & Bases

  3. What is the pH scale? • The pH scale measures how acidic or basica solution is.

  4. The pH scale • The pH scale is the concentration of hydrogen ions in a given substance.

  5. Identifying Acids and Bases • Acids have a ph from 0-7 • Lower pH value indicates a stronger acid. • Bases have a pH from 7-14 • Higher pH value indicates a stronger base.

  6. Definitions of Acids and Bases • An acid is a substance that breaks into ions in an aqueous solution. • A Base (alkaline) is a substance that breaks into ions in an aqueous solution. • Note: aqueous solution is any solution where is the solvent.

  7. Did we Miss something?? • What happens when the pH of a substance is 7? • Ans: A pH level of 7 indicates a Neutral Substance i.e: Water!

  8. Test Your Knowledge • What is the range of an ACID on the pH scale? Ans: 0-7 • What is the range of a BASE and what is another name for a BASE? Ans: 7-14, Alkaline

  9. Characteristics Of Acids Acids can be characterized by: • A sour taste. • It turns blue litmus paper red • It tastes sour. Try drinking lemon juice (citric acid)

  10. Characteristics of Bases A Base is characterized by: • A bitter taste. (Milk of Magnesia) • It feels slippery. (Soapy Water) • It turns Red Litmus Blue.

  11. Why Learn about Acids & Bases? • What do you think is the pH level of NYC tap water? • The pH of a swimming pool must be checked periodically. Why? • Is it important for Lakes & Rivers to maintain a certain pH?

  12. Today’s Experiment • Test the pH of Pepsi, tap water, and drain cleaner • GOOD LUCK!!!

More Related