chem lab exp. 6 (ii)

chem lab exp. 6 (ii) - P u rpose: To determine the...

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Unformatted text preview: P u rpose: To determine the activation energy for the reaction of oxalic acid with potassium permanganate with the effect of different temperature using a colorimetric analysis. P rocedure: T he procedure is referred to the lab manual for Experiment #6 : K inetics I I – The A rrhenius Equation Reaction between Oxalic Acid and Potassium Permanganate. Data Tables : Raw Data for Temperature Studies [KMnO 4] Trial 1 Trial 2 Trial 3 Trial 4 Trial 5 Trial 6 Trial 7 Trial 8 Trial 9 Trial 10 0.0108 0.0108 0.0108 0.0108 0.0108 0.0108 0.0108 0.0108 0.0108 0.0108 [H 2C2O4] 0.3150 0.3150 0.3150 0.3150 0.3150 0.3150 0.3150 0.3150 0.3150 0.3150 Temp. oC 45.0 42.3 41.0 40.0 38.2 35.0 34.0 32.5 31.0 30.0 Time to red (s) 45 50 55 59 64 82 96 110 120 132 Data for Rate vs. Temperature Graph Rate = [ KMnO 4]/time Trial 1 0.000240 1000/T (T in K) 3.145 -8.3349 ln(rate) T rial 2 Trial 3 Trial 4 Trial 5 Trial 6 Trial 7 Trial 8 Trial 9 Trial 10 0.000220 0.000200 0.000180 0.000170 0.000132 0.000125 0.000098 0.000090 0.000082 3.172 3.185 3.195 3.213 3.247 3.257 3.273 3.289 3.300 -8.4219 -8.5172 -8.6226 -8.6797 -8.9327 -8.9872 -9.2305 -9.3157 -9.4088 Arrhenius Plot Sample Calculations : ...
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chem lab exp. 6 (ii) - P u rpose: To determine the...

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