What is the weight of a post 1982 penny? 2.5 grams 2. What is the percent copper and zinc in a post 1982 penny? 97.5% of zinc and 2.5% of copper 3. How many grams of copper and zinc are in a post 1982 penny? 2.44grams of copper and 0.0625gramss of zinc 4. How many moles of copper and zinc are in post 1982 pennies? 0.0383moles of cooper and 0.000955moles of zinc 5. Write a balanced reaction of zinc with HCl. Zn (s) + 2 HCl(aq) ====> Zn+2(aq) + 2 Cl-(aq) + H2(g) Reaction:
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POTATO INTO BATTERY Abstract a.Purpose To lessen the consume of electric charge b. Procedure We insert copper and zinc electrodes in to the potato‚ close but not touching each other. We use Clip leads to connect our electrodes to the Multimeter to measure voltage between two electrodes or current passing through the multimeter. For this experiment we used a galvanized nail for our Zinc electrode. c. Result It did go well and the potato did give voltage to the equipment (clock) However‚ the
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Battery Power Kevin McDonald Question How much power can I get from a tomato‚ a orange and a lemon and can it light up a small light bulb? Hypothesis If I put a copper nail and a zinc nail in a tomato‚ orange or lemon it should be able to power a small light bulb. Materials *few different citrus fruits *copper nail *galvanized (zinc) nail *LED light or opaque light bulb with a 2 inch lead *crocodile clip or electric tape *micro ammeter Procedures Step 1.Prepare your fruit for the
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electrochemistry to extract metals from ionic compounds in solution Procedure: -Start by attaching battery snap connector to a battery and fill beaker with between 100 and 200 mL of copper (II) sulfate solution -Connect clip to each of the nickel strips -Place nickel strips in copper sulfate solution without strips touching -Put one clip on the positive side of the battery and the second to the negative side. Observe -Switch clips to the opposite charged sides of the battery. Observe again -Reverse
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Zinc oxide in a mixture with a about 0.5% iron(III) oxide (Fe2O3) is called calamine and is used in calamine lotion. There are also two minerals‚ smithsonite and hemimorphite‚ which have been called calamine historically (see: calamine (mineral). Zinc peroxide‚ ZnO2 .½ H2O‚ is a white to yellow powder that is used in antiseptic ointments. Zinc white is used as a pigment in paints and is more opaque than lithopone‚ but less opaque than titanium dioxide. It is also used in coatings for paper
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Firstly I will measure 20ml of Copper Sulphate solution (CuSO4) in a measuring cylinder‚ for precise accuracy‚ and then pour the solution into test tube. I will place the test tube into a beaker and insulate the test tube‚ for minimum heat loss. (As shown in the diagram above.) 2.Secondly I will measure the required amount of Zinc (Zn) on a weighing scale‚ again for precise accuracy. I will then measure the starting temperature using a thermometer. Next I will pour the Zinc into the test tube containing
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Zinc Reacts with Vinegar’s Acetic Acid To Produce Electricity March 7‚ 2014 Abstract This research is about the chemical reaction of zinc with acetic acid to produce a short amount of electricity. Even though it only conducts a small amount of voltage‚ we investigated and experimented on how it can produce more than usual without adding any other components on the project except zinc‚ copper‚ vinegar‚ or a unique container that can increase the voltage of our product. The zinc can produce
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Potato Batteries: Veggie power! Data and Analysis Background The battery was invented around 1800 by Alessandro Volta in Italy. It has become an indispensable part of modern life. Why are batteries so useful? Because they convert chemical energy into electrical energy. You can use this electrical energy to light a flashlight‚ to start a car‚ or to listen to your favorite music. We made a simple battery out of a potato by placing in it a zinc strip and a copper strip. At the zinc strip‚ the acid
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Science Research Paper: “Potato Battery” I. Problem a. Main Problem This study aims to prove whether fruits and vegetables are good reserves of electricity. The potato‚ known for its high Phosphoric Acid and Sulfuric Acid‚ has been as our chosen fruit to prove and conduct our answers upon the accessibility of fruits and vegetables as an effective renewable energy source. b. Sub-Problems To further provide extra and specific information‚ the researchers have decided to add the following
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Project Title: Fruits and vegetables have voltage? Problem & Purpose: The purpose of the experiment is to understand how battery works and find out which fruit and vegetables that we eat can be used as an alternative way for a battery source. I become interested on seeing how batteries where used to power up my flash light and toys.
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