| |
(A/B/N) |
Red |
Blue |
Phenolph- |
|
(A/B/N) |
| Substance |
Prediction |
Litmus |
Litmus |
thalein |
pH |
Result |
| Orange Juice |
|
|
|
|
|
|
| Milk |
|
|
|
|
|
|
| Lemon Juice |
|
|
|
|
|
|
| Coffee |
|
|
|
|
|
|
| Carbonated Beverage |
|
|
|
|
|
|
| Vinegar |
|
|
|
|
|
|
| Ammonia |
|
|
|
|
|
|
| Milk of Magnesia |
|
|
|
|
|
|
| Soap |
|
|
|
|
|
|
| Water |
|
|
|
|
|
|
| Saliva |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| Analysis |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| 1. Which substance had the highest pH? |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| 2. Which substance had the lowest pH? |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| 3. Which substance was closest to neutral? |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| 4. List the substance(s) that were acids from strongest to weakest. |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| 5. List the substance(s) that were bases from strongest to weakest. |
|
|
|
|
|
|
| |
|
|
|
|
|
|
| 6. On the diagram of the pH scale below, label the location for each of the substances you tested above the section identifying its pH. Shade each section the color the pH paper turned for that substance. |
|
|
|
|
|
|