Making a Potato Powered Light Bulb Materials: A large potato Two pennies Two zinc-plated nails or screws Three pieces of copper wire A very small light bulb or LED light 1) Get a potato and cut it in half. Then make a small slit in each half just big enough to put a penny into. 2) Cut two pieces of copper wire and wrap one around one of the pennies a few times‚ and wrap the other one around the other penny a few times as well. 3) Take a third piece of copper
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1. Citric Acid * Citric acid is a weak organic acid with the molecular formula C6H8O7‚ which means a molecule of the acid contains six carbon atoms‚ eight hydrogen atoms‚ and seven oxygen atoms. When it is dissolved in water‚ it partially ionizes to yield three H+ ions (hydrogen atoms which are missing their electron) and a C6H5O7(3-) ion (the 3- means that it has three extra electrons.) The resulting solution is called an "electrolyte." Chemical Reaction When two dissimilar metals are put
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Lab design –Voltaic Cells Aim Of Experiment In this experiment‚ we are going to make a battery by making an electron current between the metals Zinc and Copper. We aim two study the voltaic cells and the transfer of electrons from the metal to the ion. The tendency for the electrons to flow from one chemical to another‚ such as from the zinc metal to the copper ion as shown here‚ is something that can be channeled and controlled. Channeling the flow of electrons is what we will take up in this
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Chemical Lab Report INVESTIGATING THE FACTOR AFFECTING THE VOLTAGE OF VOLTAIC CELL Name: Lim Seong Hseng Date: 20th March 2013 IA CRITERIA ASSESSED: D Declaration: I declare that this report I have submitted is my own original work and I have acknowledged the use of words or ideas of another person. Signature:……………… Marks:………………. Introduction Aim: To investigate the factor affecting voltage of voltaic cell. Research Question: How does coupling of different metals from the electroactivity
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| 2013 | | SDM IMD | [SSLM Group Assignment: Hindalco Industries] | Submitted By Karan Dave Abhishek Pal Rishi Gandhi Sourdeep Basu Vamsi Krishna Harsh Singh Submitted By Karan Dave Abhishek Pal Rishi Gandhi Sourdeep Basu Vamsi Krishna Harsh Singh | Contents Introduction 1 History 1 HINDALCO & ITS SUBSIDIARIES/JVs 2 Products & services offered 2 Key Financials 3 Awards and Significant Achievements 5 Stock movement during the span of 2000-2013 7
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Richmonde Zegbe CHM111 Anita Mohan 03-11-2013 Experiment: Chemical reactions‚ and Equations Materials: 3 mL of copper(II) sulfate solution. 5 mL of 6 M HCl piece of zinc wooden splint test tube Bunsen burner 3 mL of zinc chloride solution. pentahydrate distill water
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Observing Flames and Specs through a Spectroscope By: Seif Alkhouri Cristian Plancia-Mata Charlotte Maxwell Suryansh Kumar Evan Hatton J. Immel Ph.D Introduction Spectroscopy is the study of the interaction between matter and radiated energy. English philosopher Roger Bacon(1214-1294) was the first person to recognize that if sunlight passes through water it splits into colors. Around four centuries ago‚ Isaac Newton originated the title “spectrum” to label the shade of rainbows put
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Observation of Different Photons when Elements are Heated Introduction: The bright line spectrum is the range of colorful lights that are emitted from an atom in its excited state. A “normal” atom‚ or an atom in its ground state‚ is when all of the atom’s electrons are in their proper energy level. When an atom is in its excited state‚ electrons jump to different energy levels making them unstable. As the electron tries to get back to its respective energy level‚ energy is emitted in the form
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Fuel cells have become a favorable future power source because they can convert chemical energy directly into electricity in a highly efficient‚ environmentally friendly manner. Although fuel cells were invented one and a half centuries ago‚ only recently has it become feasible for them to compete with existing energy production systems. Among the various types of fuel cells‚ proton exchange membrane (PEM) fuel cells promise to become a viable power source for transportation as well as a distributed
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9 Oxidation and reduction A complete set of fully worked solutions is contained in the Chemistry for WA 2 Solutions Manual. Review Exercise 9.1 1 a Redox reaction b Not a redox reaction c Redox reaction d Redox reaction 2 a Oxidation: Fe(s) Fe2+(aq) + 2e– Reduction: Ag+(aq) + e– Ag(s) Overall equation: Fe(s) + 2Ag+(aq) Fe2+(aq) + 2Ag(s) b Oxidation: Mg(s) Mg2+(aq) + 2e– Reduction: Cu2+(aq) + 2e– Cu(s) Overall equation: Mg(s) + Cu2+(aq) Mg2+(aq) + Cu(s) c No reaction.
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