CHEM218 Lab Manual XXXXXXXXXXChemistry 218 Chemical Principles IILaboratory Manual XXXXXXXXXXCourse...

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CHEM218 Lab Manual XXXXXXXXXXChemistry 218 Chemical Principles IILaboratory Manual XXXXXXXXXXCourse Team Authors and Coordinators: Lawton Shaw, Robert Carmichael, and Dietmar Kennepohl  Editor: Erna Dominey Lab Instructors Present &(Past): Jim Robinson, Melissa Gajewski, Jim Nieman, Nina Vo, Ross Witherell, Jason Norman, James Sochan, Haley Carlson, Umme Salma, Rob Carmichael (Scott McGavin, Matthew Noestheden, Igor Sinelnikov, Sam Monthana, Donna Gulcev, Vickie Russell, Darlene Rising, Klaus Thompson, Nyron Jaleel, Roberta Franchuk, Yuchiong Hsuanyu) Lab Manual Illustrations: Ian Grivois and Robert Carmichael Lab Manual Photography: Robert Carmichael and Blaise MacMullin Senior Laboratory Manager: Rafael Hakobyan Past Laboratory Manager: Elaine Goth-BirkigtEvery effort has been taken to ensure that these materials comply with the equirements of copyright clearances and appropriate credits. Athabasca University will attempt to incorporate in future printings any coections which are communicated to it. Athabasca University students have permission to print a copy of this manual at private printing services. © Athabasca University 2018, 2019 Printed in Canada SLID 060619Contents General Information  ....................................................................... XXXXXXXXXX1 Introduction  ...................................................................................... XXXXXXXXXX3 Organization  ..................................................................................... XXXXXXXXXX4 Materials to be Provided by the Student  ....................................... XXXXXXXXXX5 Evaluation of Students’ Work .......................................................... XXXXXXXXXX6 Writing Laboratory Reports  ............................................................ XXXXXXXXXX7 Laboratory Academic Conduct ..................................................... XXXXXXXXXX18 Safety General  ................................................................................. XXXXXXXXXX22  Safety Rules  ................................................................................. XXXXXXXXXX23  Some General Advice Regarding Laboratory Work  .............. XXXXXXXXXX26  Medical Information Form  ........................................................ XXXXXXXXXX28  Chemistry Laboratory Accident Form  ..................................... XXXXXXXXXX29  WHMIS  .......................................................................................... XXXXXXXXXX30  Hazard Symbols  ......................................................................... XXXXXXXXXX31  Safety Exercise  ............................................................................ XXXXXXXXXX32 Common Apparatus  ...................................................................... XXXXXXXXXX33 Checklist of Equipment Contained in Each Student Kit  ........... XXXXXXXXXX37 Experiments  .................................................................................... XXXXXXXXXX39 Block D Experiments  ...................................................................... XXXXXXXXXX41  Experiment D1: Reaction Kinetics I— Experiment D1:     The Determination of a Rate Law  ................ XXXXXXXXXX43  Experiment D2: Reaction Kinetics II— Experiment D2:     The Determination of an Activation Energy XXXXXXXXXX57  Experiment D3: The Determination of an Equiliium Constant† XXXXXXXXXX  Experiment D4: Le Châtelier’s Principle  ................................. XXXXXXXXXX77  Experiment D5: Titration Curves  ............................................. XXXXXXXXXX85 Block E Experiments  ...................................................................... XXXXXXXXXX93  Experiment E1: Voltaic Cells  ..................................................... XXXXXXXXXX95  Experiment E2: The Determination of a Molar Mass by Electrolysis† XXXXXXXXXX Block F Experiment  ...................................................................... XXXXXXXXXX111  Experiment F1: The Preparation of Acetylsalicylic Acid (Aspirin)† XXXXXXXXXX Appendix  ..........................

Dr Shweta · Accepted Answer

1. Purpose of the experiment: 
Chemical reactions normally exhibit higher reaction rates as temperature is raised, as reaction rates typically increase with a rise in temperature. As the temperature rises, the average kinetic energy of the molecules also increases. For two molecules to undergo a reaction, they need to collide with an energy level that is at least as high as the activation energy threshold. The likelihood of two reactant molecules impacting with enough energy for a reaction to happen and be transformed into products increases as the average kinetic energy of the molecules increases.
The activation energy, Ea, of a reaction is the energy difference between the reactants and the transition state (or activated complex). In 1889, Svante Arrhenius initially established the correlation between the rate (rate constant) of a specific process and the absolute temperature. The accepted name for this relationship is commonly referred to as the Arrhenius equation:
k = Ae-Ea/RT
where k is the rate constant, A is a probability factor, Ea is the activation energy, R is the universal gas constant, and T is the absolute temperature.

write a lab report for Reaction Kinetics II— The Determination of an Activation Energy

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