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Name: Jonathan Tam Class: 12A Chemistry Experiment Report - Data Collection, Data Processing and Presentation, Conclusion and Evaluation Aim: Determine a Rate Equation between reaction of potassium permanganate and oxalic acid. Experiment Procedure: Refer to worksheet enclosed. Data Collection: Mass of beaker: 32.17g ? 0.005g Mass of beaker + (COOH)2: 63.67g ? 0.005g Volume of (COOH)2: 500ml ? 0.2ml Reagents Experiment 1 Volume /mL ? 0.1mL Experiment 2 Volume /mL ? 0.1mL Experiment 3 Volume /mL ? 0.1mL H2C2O4 20.00 20.00 10.00 KMnO4 10.00 5.00 10.00 H2O 0.00 5.00 10.00 Scale of bruette: 0.1ml Scale of balance: 0.01g Results: Experiment 1 Experiment 2 Experiment 3 Time ? 0.2s 00:06:54 00:07:21 00:11:57 (hour: minute: second) 00:07:03 00:07:40 00:12:40 00:07:11 00:07:31 00:12:31 Systematic error of time is ? 0.05s. However humans can only resond up to ? 0.2s. Data Processing and Presentation: Experiment 1 Experiment 2 Experiment 3 Time (s) ? 0.2s 414 441 717 423 460 760 431 451 751 Average time (s) 422.7 450.7 742.7 Mass of (COOH)2: (63.67 - 32.17)g ? (0.005 + 0.005)g = 31.50g ? 0.01g Starting concentration of (COOH)2 = moles / volume = (31.50 / 126.07) / (500 / 1000) = 0.4997 mol dm-3 Starting concentration of KMnO4 : = moles / volume = 0.02 mol dm-3 [KMnO4] [(COOH)2] r1 (0.02 * 10 / 1000 / 30 / 1000) (0.5 * 20 / 1000 / 30...

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