Transcript pH Lab - Mrs. Basepayne's Science Spot

PH LAB
QUESTION
Which household solutions are acidic
and basic?
HYPOTHESIS
If I test the pH of different household
solutions then (list all solutions you think
will be acids) will be acidic, (list all
solutions you think will be basic) will be
basic, and (list any you think will be
neutral).
PROCEDURES
1. Add 5 drops of lemon juice to the first
well.
2. Dip one pH test strip into the solution.
3. Compare the color the strip changed to
the pH scale. Record the pH.
4. Repeat for each of the 8 additional
solutions.
DATA TABLE
Solution
Lemon juice
Vinegar
Mouthwash
Window Cleaner
Soda
Unknown #1
Unknown #2
Unknown #3
Unknown #4
pH
Acid/Base?
POST LAB QUESTIONS
1. Is your hypothesis valid or invalid and
why?
2. What characteristics do you notice
about acids? Bases?
3. What were the unknown solutions?
Were they acids or bases?
Conclusion
Write a 5 sentence conclusion on what you
learned about pH and what you found
interesting in the lab.