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Unformatted text preview: the same substance and touch it to the pH paper. Record the pH level. 4. Wash off the stirring rod and repeat step three for a different substance until you have done so for each substance, washing the stirring rod each time you change substances. *Be quick to record the results for the liquid bleach because it will bleach the litmus paper and null the results within seconds. Results: See chart on page 19. Conclusion: The substances that are acids have increased concentration levels of H 3 O + and decreased concentration levels of OH-. The substances that are bases have increased concentration levels of OH-and decreased concentration levels of H 3 O + . The substances that are bases have a pH level greater than 7 and change the red pH Lab Mitchell T. Heaton litmus paper blue. The substances that are acids have a pH level less than 7 and change the blue litmus paper red....
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- Spring '12
- pH, litmus paper, blue litmus paper, Mitchell T. Heaton