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Unformatted text preview: Lindsay Kramer Partners: James Deorio, Greg Thelusiua, Kim Burich 3/6/08 Unit 1; pt. 2 revised Our hypothesis states that Salon formulated shampoos will be the best buffer as opposed to cheap over the counter shampoos. The independent variable in this experiment is the different amounts of Hydrochloric acid being added to the shampoos. By manipulating these variables, we hopefully will see a gradual decrease in the dependent variable, meaning the pH. The dependent variable is the change of pH of the shampoos after the drops of acid are added to the shampoo mixture. This is the dependent variable because the pH changes on it own, rather than being changed by us, the experimenters, like the independent variable. The control variable in this experiment is the pH of the shampoo without any drops of acid. We measure the pH of the shampoo while it is free from acid, so we can drops of acid....
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This lab report was uploaded on 04/19/2008 for the course BMS 113 taught by Professor Kapper during the Spring '08 term at Central Connecticut State University.
- Spring '08