1.) Purpose - The purpose of the experiment was to classify biological solutions as acids or bases and to measure the pH of a solution while learning to relate the pH scale to how acidic or basic a solution is, and learning to explain how a buffer affects the pH of a solution.

2.) Materials - For part one the materials are distilled water, tap water, ammonia, baking soda, vinegar, shampoo, orange juice, milk, bleach, diet coke, full-range pH paper, 10 test tubes, distilled water in wash bottle, biceps, pencil, test-tube rack, computer pH tester, and red and blue litmus paper. For part two the materials are Bromothymol blue indicator, egg white solution, 125-mL Erlenmeyer flask, 0.1 N Hydrochloric acid, dilute basic solution, medicine dropper, computer pH tester, and biceps.

3.) Procedure - Part I

1. Labeled 10 test tubes so that there is one test tube for each of the substances.
2. Poured a sample...