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Module 5 Discussion and Conclusion

Module 5 Discussion and Conclusion

Q GC 2-5: Rate of Reaction Study Grading Rubric GC 2-5: Rate of Reaction Study Grading Rubric Criteria Ratings Pts This criterion is linked to a Learning OutcomePrelab 5 pts Full Marks Prelab includes the goal of the experiment (purpose of the experiment, any equations used and major concepts), flowchart and waste collection 5 to >0.0 pts Partial Marks Prelab is not detailed. It is missing some part of the goal of the experiment (purpose of the experiment, or/and equations used or definitions) or it is missing flowchart or waste collection. 0 pts No Marks Student did not submit the prelab or did not have the prelab in the lab. TA's signature is missing. 5 pts This criterion is linked to a Learning OutcomeDetermination of S2O3 in mixture and I2 produced 4 pts Full Marks Full calculations are shown with correct significant figures and units. 4 to >0.0 pts Partial Marks Partial calculations are shown. Significant figures might not be correct and/or units are not included. 0 pts No Marks Calculations are not shown or not correct. Significant figures are not correct and units are not included. 4 pts This criterion is linked to a Learning OutcomePart I and II 19 pts Full Marks All calculations are shown with correct significant figures and units. Concentrations of [H+], [H2O2] and [I-] are calculated and all calculations are included. Rate is determined for each flask. 19 to >0.0 pts Partial marks Partial calculations are shown and/or not correct. Significant figures might not be correct and/or units are not included. 0 pts No Marks No calculations are shown or they are not correct. Significant figures are not correct and units are not included. 19 pts This criterion is linked to a Learning OutcomeOrder of Reaction With Respect to the Reactants 12 pts Full Marks All calculations are shown with correct significant figures and units. Order with respect to H2O2, I-, H+ and overall order of the reaction are correctly determined. 12 pts Partial Marks Partial calculations are shown and/or not correct. Significant figures might not be correct and/or units are not included. 0 pts No Marks No calculations are shown or they are not correct. Significant figures are not correct and units are not included. 12 pts Total Points: 40 PreviousNext

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Discussion and Conclusion The purpose of this experiment was to figure out how fast H2O2 + 2I- 2H+ ? 2H2O occurs. Also, figure out the reaction’s overall order. The changes in reaction concentration, temperature and catalyst present. I believe that increasing the rate of a reaction can be accomplished by increasing the temperature, concentration reaction, and adding a catalyst ( this time Cu2+). The change of the concentration of a reactant or product over time is referred to as the reaction rate.