# 43.5: Analysis


1. Compare your observations with what other teams observed.  Decide as a team whether to change any of your recorded answers.

2. Use the following scale for the universal indicator to assign pH values to your solutions in the changing colors experiment.  Record what you think the pH value was for each pour.

Table $$\PageIndex{1}$$: Scale for the universal indicator to assign pH values

Red

Pink

Orange

Yellow

Green

Blue

Purple

1

3

5

6

8

12

14

Table $$\PageIndex{2}$$: pH value for each pour

Stage of Experiment

pH

1st Beaker added to 2nd Beaker

2nd Beaker added to 3rd Beaker

3rd Beaker added to 4th Beaker

1. What is the evidence that chemical reactions were taking place during these processes?

2. State any errors that may have resulted in the wrong color(s) being observed.

## Contributors and Attributions

43.5: Analysis is shared under a CC BY license and was authored, remixed, and/or curated by LibreTexts.