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Unformatted text preview: If the pH is above 7, 6M HNO3 will be added until the pH is less than 7. After the pH has been properly adjusted, a hot plate will be used to gently boil solutions for 40 minutes or until the solution is less than 10mL. The solution will then be diluted with 30mL distilled water. After this is done the pH will be measured to ensure that the levels are increased by 2-6 by adding 1M of NaOH. The solution will then be diluted again by 50mL of distilled water. The spectrometer can measure the absorbance of the solution, and using beer’s law, the concentration can be determined. The three species of bananas can simply be bought in a store and brought to lab....
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This note was uploaded on 12/04/2008 for the course CHEM 103a taught by Professor Weso during the Spring '08 term at Arizona.
- Spring '08