Names
1. Title-pH: Acids, Bases and the Ocean
2. Purpose-The purpose of this experiment is to…
Questions:
1. What are the strongest acids and bases?
2. How does the pH paper detect acidity or alkalinity?
3. What is the pH of the various samples of Ocean water? What does this tell us?
3. Hypothesis (predictions)
-I predict that…
4. Procedures
5. Data Table
Period 1
Solution
Venice Beach
Will Rogers
Las Salinas
Playa Del Rey
Santa Monica
pH Paper Color
Orange
Orange
Green
Dark Blue
Green
pH (number)
8.0
8.0
7.4
8.4
7.4
Acid or Base?
Slightly Basic
Slightly Basic
Slightly Basic
Slightly Basic
Slightly Basic
Period 2
Solution
Dockweiler
Santa Monica
Will Rogers
Faro Beach
Santa Monica
pH Color
Dark Green
Dark Green
Dark Green
Dark Green
Forest Green
pH (number)
7.7
8.2
7.8
7.8
7.4
Acid or Base?
Slightly Basic
Slightly Basic
Slightly Basic
Slightly Basic
Slightly Basic
Period 3
Solution
Dockweiler
Will Rogers
Malibu
Faro
Period 4
Solution
1.Dish Soap
2. Drano
3. Bleach
4. Alcohol
pH Color
Light green
Olive
Greyish Black
Olive
pH (number)
7.5
7.8
8.0
7.8
Acid or Base?
Weak Base
Weak Base
Weak Base
Weak Base
pH Color
Yellowish green
Purple
Greenish
Yellow
pH (number)
8
14
9
7
Acid or Base
Weak Base
Strong Base
Base
Neutral
5. Baking Soda
6. Ammonia
7. Citric Acid
8. Lemon Juice
9. Vinegar
10. Milk of
Magnesia
11. Tap Water
12. Faro
13. Dockweiler
14. Santa Monica
Green
Dark navy
Red
Orange-red
Orange-red
Yellow-green
9
Base
1
3
3
9
Strong Base
Strong Acid
Acid
Acid
Base
Yellow
Off the Charts
Green
Green (olive)
7
7.2
7.8
7.8
Neutral
Nearly Neutral
Nearlry Neutral
Nearly Neutral
14
Observations:
6. Results (graph here) Click on insert, picture, and chart. Format the cells to reflect the
dissolved solids and liquids data.
7. Conclusion-FOLLOW THE RERUN FORMAT and address both questions! Do
not forget to post your conclusion on nicenet (each individual) and bring in paper copies
(one for each person) on Friday! Have a nice week!