CU-Boulder PSYC 2841 - Exam 3 Study Sheet (2 pages)

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Exam 3 Study Sheet



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Exam 3 Study Sheet

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Pages:
2
School:
University of Colorado at Boulder
Course:
Psyc 2841 - Independent Study (Lower Division)

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CHEM 1133 FALL 2017 EXAM 3 STUDY SHEET Learning Goals Electrochemistry Chapters 4 5 and 21 omit sections 5 6 Detailed Learning Objectives 1 An oxidation reduction reaction commonly abbreviated to redox reaction involves a net transfer of electrons from one chemical species to another Distinguish a redox reaction from other types of reactions and identify which species lose electrons and which ones gain electrons 1 1 Assign oxidation numbers to the individual atoms within molecules and molecular ions and use them to track the flow of electrons in a reaction 1 2 Determine whether a chemical reaction is an oxidation reduction redox reaction 1 3 Analyze a redox reaction by breaking it into oxidation and reduction half reactions 1 4 Construct new oxidation reduction reactions from a set of specified half reactions 1 5 Balance a redox reaction and determine how many electrons are transferred in the reaction 2 Show how a redox reaction can be used to generate an electrical current by separating the oxidation process from the reduction process in an electrochemical cell Also show how a chemical reaction that would not occur on its own can be driven by an electrical current 2 1 Given a sketch of an electrochemical cell including electrode materials and ions in solution state what chemical reaction is taking place in that cell 2 2 For a given redox reaction design an electrochemical cell in which that reaction could be used to generate an electrical current 2 3 Show the direction in which electrons ions and electrical current move when an electrochemical cell is producing electrical power and when the cell is being driven by an external power source 2 4 Predict what happens to the components in an electrochemical cell does an electrode grow or shrink do the concentrations of ions in solution increase or decrease when the cell is producing power and when it is being driven by an external source 2 5 Calculate how much product will be made when a measured electrical current passes through an electrolytic cell equivalently how much current is required to produce a desired amount of product 3 Predict which reactions are spontaneous using tabulated electrochemical potentials and relate these to chemical equilibrium properties 3 1 Use tabulated standard reduction potentials E to predict the direction in which a chemical reaction will take place given components and their concentrations 3 2 Use standard reduction potentials to calculate the voltage produced by an electrochemical cell given the cell components and their concentrations 3 3 Construct an electrochemical cell that is capable of producing a specified voltage 3 4 Calculate the equilibrium constant of a reaction from standard reduction potentials 3 5 Predict the products that will be formed when an electrical current is passed through a mixture of ions an aqueous ionic solution or a mixture of molten salts 4 Analyze various real world applications of electrochemical processes such as batteries



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