Brianna Cooper Brandon Boucher 2/16/12 Purpose: To understand how both voltaic and electrolytic cells function. Procedure: Refer to pages 34-36 of laboratory notebook for experimental details Results and Discussion: Voltaic Cell Reactions | | | Overall Cell Reaction | Observed Voltage | Theoretical Voltage | Cu2+(aq)+Zn(s) Cu(s)+Zn2+(aq) | 0.947 V | 1.10 V | Cu2+(aq)+Sn(s)Cu(s)+Sn2+(aq) | 0.571 V | 0.473 V | Cu2+(aq)+Fe(s) Cu(s)+Fe2+(aq) | 0.512 V | 0.777 V | Cu2+(aq)+Mg(s) Cu(s)+Mg2+(aq)
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If the electrolyte solution is highly concentrated‚ then the amperage productions will also increase and vice versa. In a galvanic cell‚ the amperage is generated from flows of electrons between the two metals in the metal sulfate solution of the electrolyte. In order for a chemical reaction to take place‚ the reactants must collide. The collision between the molecules in a chemical reaction provides the kinetic energy needed to break the necessary bonds so that new bonds can be formed. Thus‚ increasing
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Abstract Hot tubs are very popular across America due to their relaxation as well as health benefits. Hot tubs have been attributed health benefits ranging from relief of muscle and joint pain‚ to help in treatment of HIV and other viral infections. Because of this‚ many people own hot tubs and many more go to health spas where they can use them. On the other hand‚ hot tubs are not that easy to maintain. A consistent disinfectant level must be maintained in order to inhibit the growth of
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Hydrogen Fuel Cells There are many reasons to look for new cleaner forms of energy. Fossil fuels‚ being non-renewable‚ will eventually run out. Pollution from burning fossil fuels destroys our environment. Hydrogen fuel cells could be used many places where fossil fuels are currently being used. Using hydrogen as a form of energy can not only reduce our dependence on imported oil‚ but also benefit the environment by reducing emissions of greenhouse gases and pollutants that affect our air quality
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1. Results Part 1: When samples of austenitic stainless steel are immersed in a sulphuric acid solution and are taken through a current‚ it may be observed that corrosion products are formed around the electrodes‚ to differing degrees. The reason for this is because when a uniform voltage is applied across the series of interconnected electrodes in the acid solution different potentials are obtained at each electrode and hence different electrochemical reactions take place. The products of these
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Variation of Conductance with Temperature in Electrolytes Index 1.Certificate.................................................................3 2.Acknowledgements.....................................................4 3.Aim..........................................................................5 4.Apparatus..................................................................6 5.Important Terms........................................................7 6.Conductivity...
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Analyzing electrolytes I. Introduction Ionic substances form when a metal reacts with a non-metal. They contain charged particles called ions. Those ionic substances are broken down by electrolysis. Electrolysis is the breakdown of a substance by electricity‚ and it only happens in liquids. The liquids that can be electrolyzed are called electrolytes. When said electrolyzed‚ means that the compounds in solutions are broken down when they conduct electricity. Its necessary the use of electrodes
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ELECTRICAL CONDUCTIVITY IN SOLUTION REPORT By: Dwinita Ayuningtyas ( X2 / 10) Elizabeth Irianti ( X2 / 10) M. Ariefur Rohman ( X2 / 10) Richa Wahyu A. ( X2 / 10) Tiara Faradina P. ( X2 / 10) Yanuar Alfa T.S. ( X2 / 10) [pic] Worship and praise we prayed the presence of god almighty who has guided and directed us‚ so we can resolve this chemical report. We make this report to refine the experiment on the Electrical Conductivity In Solution we’ve done a few days ago
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Internet. References 1 Delahunt‚ J. F. "Corrosion Control Under Thermal Insulation and Fireproofing." Proceedings: Exxon Research & Engineering Co. Internal Conference on Corrosion Under Insulation (1984): p 554. http://www.nationalboard.org/Index.aspx?pageID=184 2 Butler‚ G.‚ and H. C. Ison. "Corrosion and Its Prevention in Waters." Melbourne‚ FL: Robert E. Krieger. (1976): Ch. VI‚ p lO2. http://www.kastenmarine.com/_pdf/mbqCref.pdf 3 Midwest Insulation Contractors Association. "Commercial
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Coursework Questions to Alan I. Taub‚ Automotive Materials: Technology Trends and Challenges in the 21st Century‚ MRS Bulletin‚ Volume 31‚ April 2006‚ 336-343 Read this article and answer the following questions on its basis: 1. What is the percentage of automotive vehicles that are powered by petroleum products? 2a. When did the area end where automobiles were a cost + margin = price business? 2b. Into what did this equation change to? 3. What is the primary challenge in improving automotive
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