1. Define the term "pH"; what does" pH" stand for?
2. Name the common acid-base indicators used in the laboratory with their color change.
3. What is a universal indicator? What is its advantage?
4. Which is the correct set of acid properties,
a. sour taste, corrosive, change litmus from red to blue
b. sour taste, corrosive, change litmus from blue to red
c. sweet taste, slippery, change litmus from blue to red
d. sour taste, slippery, change litmus from blue to red
5. Neutral solutions have a pH of: a. 0 b. 7 c. 14 d. They do not have a pH.
6. Which is true?
a. pH of less than 7 is basic; pH of more than 7 is acidic
b. pH of less than 7 is acidic; pH of more than 7 is basic
7. What is a solution that has an excess of H+(hydrogen) ions?
8. The pH scale is actually measuring the number of H+ ions in a solution. If there are a lot of H+ ions, the pH is very _______.
9. ) Describe the pH of (a) an acid (b) a base (c) a neutral substance
10. Which is more acidic? (a) grapes or bananas (b) baking soda or bleach
11. Which is more basic? (a) egg or soap (b) pumpkin or apple
12. What is the most acidic substance on the scale? What is the most basic substance on the scale?
13. What does pH measure? What does pOH measure?
Source: various educators and Langhans