2. Jason Seidel Tiff Scharadin Spring of 2003

3. Acids  An acid is a material that can release a proton or hydrogen ion (H + )  Acids donate protons Back to Quiz

4. Bases  A base, or alkali, is a material that can donate a hydroxide ion (OH - )  Bases accept protons Back to Quiz

5. Neutralization  Acids are paired with bases  The neutralization of an acid and a base produces water and a salt.

6. Proton Exchange between Water Molecules A proton leaves the first molecule and is accepted by the second. The first becomes a base and the second becomes an acid. The acid then donates a proton and the base accepts the proton.

7. Ph  A neutral pH can be achieved by adding an equal amount of the acid solution to the base solution

8. List of common acids and bases  Lowest (most acidic)  Highest (most basic)

9. Question 1  An acid… A. donates protons.donates protons. B. loses protons.loses protons. C. takes over the world.takes over the world. D. is the same as a base.is the same as a base.

10. Answer 1A  Correct, go on to next question.

11. Answer 1B  Incorrect, click here to go back and try again.  Click here to go back and review.

12. Answer 1C  Did you really think this was the correct answer?  Click here to go back and try again

13. Answer 1D  Acids cannot be bases.  Click here to go back and review.

14. Question 2  A base… A. donates protons.donates protons. B. loses protons.loses protons. C. is one of three objects on a baseball field.is one of three objects on a baseball field. D. is the same as an acid.is the same as an acid.

15. Answer 2A  Incorrect, click here to go back and try again.  Click here to go back and review.

16. Answer 2B  Correct, go on to the next question.

17. Answer 2C  This may be true, but this is chemistry we are talking about.  Click here to go back and try again.

18. Answer 2D  A base cannot be the same as an acid.  Click here to go back and review.

19. Question 3 How many liters of a 1 molar base solution are needed to neutralize 1 liter of a 1 molar acid solution? A. 0.5 liters 0.5 liters B. 2 liters 2 liters C. 1 liter 1 liter D. 1 ml 1 ml

20. Answer 3A  Sorry, wrong answer. Go back and try again.

21. Answer 3B  Sorry, wrong answer. Go back and try again.

22. Answer 3C  Correct, go on to the next question!

23. Answer 3D  Maybe you weren’t watching your units. Go back and try again.

24. Question 4 Which has a lower pH, vinegar or household ammonia? A. VinegarVinegar B. Household ammoniaHousehold ammonia

25. Answer 4A  Sorry, the answer is household ammonia. Move on to the final question.

26. Answer 4B  You are correct, go on to the final question!

27. Question 5 Which has a higher pH, distilled water or cow’s milk? A. Distilled waterDistilled water B. Cow’s milkCow’s milk

28. Answer 5A  You are correct!

29. Answer 5B  Sorry, the answer is distilled water.

30. Work Consulted  Animation on slide 5 from  Picture on slide 7 from http://www.bmb.psu.edu/courses/bisci004a/chem/phscale2.jpg http://web.jjay.cuny.edu/~acarpi/NSC/7-ph.htm

31. The End  We hope you enjoyed our presentation and learned something new about acids and bases!