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107 Exp 9 Lecture

107 Exp 9 Lecture - Chemistry107 Experiment9...

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Click to edit Master subtitle style  4/7/11 Chemistry 107 Experiment 9 Chemical Kinetics
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 4/7/11 22nd ~ 25th Feb. Ø Written Quantitative Exam For makeup for exp 6~9 ü Sign up the makeup Today ü 15th ~ 22nd Feb. 22nd ~ 1 hour before the qual. Lab. ü Pre-lab quiz for exp 1 ü Read Exp 1 manuals
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 4/7/11 The Chemistry 2I - S2O8 2- I 2 2SO4 2- + + I 2 2I - + + 2S2O3 2- S4O6 - [S2O32-] limits the reaction of I- with  S2O82-  Rate depends on [S2O32-]  t O S Rate × = - ] [ 2 1 2 3 2 S2O3 2- : Thiosulfate ion S2O8 2- : Peroxydisulfate ion (Slow) (Very fast)
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 4/7/11 Ex;  Before deciding the rate,  You have to calculate the final conc. first ' ' V M MV = q   Use the above equation to calculate any chemical conc.  (M) M: the final conc. (you calculate this) V: total volume after adding all chemicals M�  : stock solution conc. (original) V £  : volume of the chemical you add in the mixture
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