Chem 1BL - E13 - Discussion

Chem 1BL - E13 - Discussion - Bert Mouler TA: Brendan Beahm...

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Bert Mouler TA: Brendan Beahm Chemistry 1BL – Experiment 13 – Discussion In this experiment we learned about catalysts and activation energy by decomposing H 2 O 2 in different environments. In part 1 of this experiment, we compared three solutions. The balanced reaction equation for all three of these was 2H 2 O 2 → 2H 2 O + O 2 (g). The first was a solution of 10 mL 0.1 M KI, 15 mL DI water, 5 mL 3% H 2 O 2 . The reaction started out at 23.0 C and ended at 23.0 C as well. The second was a solution of 10 mL 0.1 M KI, 10 mL DI water, 10 mL 3% H 2 O 2 . This reaction also started out at 23.0 C and also ended at 23.0 C. The third was a solution of 20 mL 0.1 M KI, 5 mL DI water, 5 mL 3% H 2 O 2 @ 23.0 C. This reaction also started out at 23.0 C and also ended at 23.0 C. The reason there was three reactions is because we needed three equations to solve for two unknown variables. In this case the equations were obtained from linear regressions of the graphs of the volume
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