Household Acids/bases Lab
ADVERTISEMENT
1
2Score = ______/ 20 points
Procedure Points
2 –
1 –
Name _____________________________ Period _____
Household Acids/Bases Lab
In this lab you will test some chemicals that you may have around the house for their pH level.
Some may be used for cleaning purposes, while others may be consumed. In order to test these
chemicals you will use pH paper, and three liquid indicators.
Caution – Do not test Ammonia, Drain Cleaner, or Glass Cleaner at the same time!
Directions – Make sure not to touch the tips of the droppers to any of the chemicals!
1) At your starting station, fill spots #1, #2, and #3 with 3 drops of the same chemical.
2) Take a piece of pH paper out of the container and tear it in half. Give the other half of the paper to
the other group at the starting station with you.
3) Dip the pH paper in your chemical, and when it changes colors, match it to the scale on the side
of the bottle to find the pH value of the chemical. Share and record the value in the table below.
4) Now, place one drop of phenolphthalein solution in the chemical in spot 1. Note the color change
in the chart below. If no color change occurs, or you cannot see it, place “NV” in the chart for “Not
Visible”.
5) Next, place one drop of methyl orange indicator solution in the chemical in spot 2. Note the color
change in the chart below. If no color change occurs, or you cannot see it, place “NV” in the chart
for “Not Visible”.
6) Next, place one drop of universal indicator solution in the chemical in spot 3. Note the color
change in the chart below. If no color change occurs, or you cannot see it, place “NV” in the chart
for “Not Visible”.
7) Rinse out the spot plate after testing the two chemicals at your table and move to the next table to
test those chemicals when directed to do so!
Chemical
pH Paper
Phenolphthalein
Methyl Orange
Universal Indicator
Value
Color
Color
Color
Orange Juice
Coca-Cola
Ammonia
Glass Cleaner
Vinegar
Bleach
Alka-Seltzer
Shampoo
Minneapolis
Tap H
O
2
Drain Cleaner
Strong Acid
Strong Base
Questions
1) Of the chemicals tested in the lab, list those that would be considered acids. (1 pt)
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education