Chem 1008 Lab Report 8.docx - Name: Gladys Reyes Date:...

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Name: Gladys ReyesDate: April 19, 2018Section: 601TA Name: Pramathesh MajiMaking BatteriesI pledge that the work submitted for this lab report is my original work and isin accordance with the principles of academic integrity as defined in thestatement on Academic Dishonesty in the UNO Student Code of Conduct.Signature:Gladys ReyesDate:April 19, 2018
AbstractThis experiment was divided into two separate parts. For the first part of the lab a battery wasconstructed to produce an electric current as a result of a spontaneous redox reaction betweenzinc metal and copper ions of varying concentrations. In the second half of the experiment,additional batteries were prepared using different half cells with the Cu/Cu2+half cell. Manycombinations were made with different metals (zinc, silver, nickel, magnesium and lead). Thepotentials were recorded and compared to predicted values based on standard reductionpotentials. Then, three different batteries were tested to determine which combination would givethe largest potential. In addition to finding the highest voltage, the battery that would give thebest ration of volts to cost (V/$) was determined. The batteries made were: silver-zinc battery,zinc-magnesium battery and a silver-magnesium battery. In this case the best battery was foundto be the silver-zinc battery. The silver-zinc battery had a voltage of approximately 1.15V.IntroductionThe purpose of this experiment was to understand the fundamentals of electron transfer reactionsand the components that make up a battery. Understanding these concepts would allow for thedesign and construction of a battery that could achieve a large potential.Batteries are devices which produce energy from a chemical reaction.1Chemical reactionsinvolving the transfer of electrons from one reactant to another are calledoxidation-reductionreactions orredoxreactions. This is simply a process by which the process of transferringelectrons is used in order to generate products.2In batteries, there is an oxidation that feedselectrons into an electrical circuit which is coupled to a reduction which consumes electrons.1Anoxidation happens when a reagent loses electrons and a reduction occurs when a reagent gainselectrons.1The processes of oxidation and reaction occur together, with the flow of electronsoriginating at the anode and traveling to the cathode.2The reactions that power batteries are spontaneous. If the oxidizing agent comes into contactwith the reducing agent then a spontaneous reaction occurs.

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Term
Fall
Professor
Pheobe Zito

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