What is the pH number of each liquid?

Objective: To determine the pH number of the different liquids and to classify the liquids as acids or bases.

Materials: (per group)
·Sheet of white paper
·Test tray
·10 liquids with droppers
·pH paper
·pH chart

Procedure:
1.Make your pH predictions for the 10 liquids listed in the table below.
2.Collect materials for your group.
3.Place the white sheet of paper under your test tray.
4.Place a small piece of pH paper in 10 individual cups of the test tray.
5.Place 1 drop of liquid #1 in the first cup of the test tray. Record the pH of the liquid, using the pH chart, in your data table.
6.Repeat step 5 for each of the remaining liquids.
7.Once you have tested each liquid, complete the data table by identifying the liquid and answering whether or not your pH prediction was correct.

You will be testing the following liquids:
vinegar, pop, water, hydrochloric acid, ammonia, bleach, dish washing detergent, milk, lemon juice, antacid

Make a chart listing the liquids you are testing and write your pH prediction for each of the liquids


DATA TABLE
The substances you are testing are only labeled as numbers. You will not know the identity of each liquid until you have found their pH. Once you have determined the pH of each substance, use your textbook to help you identify the liquids. Label each as an acid, base or neutral by placing the liquid names in the appropriate place of the pH scale.

Unknown liquid pH of liquid Identity of liquid Was your prediction correct?
#1
#2
#3
#4
#5
#6
#7
#8
#9
#10

Conclusion:
1.How many of your predictions were correct?

2.How did you make your predictions? How did you know if they were an acid or base to begin with?