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###### Experiment 42 Rate Studies on the Decomposition of Aspirin Representative DataPart A Part A Part A Tube 1 Tube 1 Tube 1 1. Mass of aspirin in tube 0.0604 0.0398 0.0635 2. Absorbance, Abs. of solution 0.453 0.257 0.366 [Sal] in reaction mixture Use equation: Absorbance = 235 [Sal] At (Read: Part A step 7 and Part C) 5.5 min 5.5 min 11 min 4. Correction: (Rate in Tube 1) (Rate in Tube 2) Correction: ([Asp] in Tube 1) / ([Asp] in Tube 2)

Experiment 42 Rate Studies on the Decomposition of Aspirin Representative Data Part A Part A Part A Tube 1 Tube 1 Tube 1 1. Mass of aspirin in tube 0.0604 0.0398 0.0635 2. Absorbance, Abs. of solution 0.453 0.257 0.366 [Sal] in reaction mixture Use equation: Absorbance = 235 [Sal] At (Read: Part A step 7 and Part C) 5.5 min 5.5 min 11 min 4. Correction: (Rate in Tube 1) (Rate in Tube 2) Correction: ([Asp] in Tube 1) / ([Asp] in Tube 2)

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