pH notes

pH Magic Lab Worksheet

 

schmied/reid©2004	Basic Questions	Name _________
	about	period ___
	Acids and Bases	Student # ___

pH Lab questions

Answer these incredibly scintillating questions on a separate sheet of paper using complete, quality and correct sentences. (10 pts each except #3 = 30pts)

1 Which type of burn, acid or base, has a better chance of "hurting"? Why?

2. Tell why a pH indicator changes color in solutions of different pH's.

Use you lab data to help you answer the following questions.

3. Make a Data Table that shows the name and pH range that each pH indicator can detect. Arrange them by lab station, from 1 to 8. Use this data to help you answer the other questions.

4. Which natural pH indicators can be used to detect both acids and bases?

5. Which natural pH indicator(s) can detect the widest range of pH?

6. Which manmade pH indicator(s) can be used to detect only acids, only bases?

7. Which pH indicator can detect the widest range of pH ?

8. Look at the pH scale above and your data table for question 1 above. For each of the substances listed, tell a NATURAL indicator that would react to it

a. Lemon juice	b. Baking soda
c.Sodium Hydroxide	e. "Normal" rainwater

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