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 experiment. Research question How would changing the shape of zinc and copper affect the voltage of the
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appliances‚ which need only small currents such as portable items (radio). It consists of a zinc outer casting‚ the anode‚ an aqueous paste of ammonium chloride and a mixture of powdered carbon and manganese dioxide around a carbon rod‚ which is the cathode. Initially no zinc chloride is present‚ but as the cell is used zinc ions are formed and ammonium ions are discharged. The reaction at the anode‚ the zinc cylinder is: Zn(s) → Zn2+(aq) + 2e- At carbon rod (cathode)‚ reduction half reaction is:
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Sulfate‚ 2 M - 3 mL in Pipet 1 Lead metal‚ 4 small pieces in bag 2 x 3” 1 Sodium Sulfate‚ 1 M - 3 mL in Pipet 1 Zinc Metal - 2 Small Pieces in Bag 2"x 3" 1 Zinc Nitrate‚ 2 M - 3 mL in Pipet Procedure 1. Place 10 drops of Sodium sulfate‚ Na2SO4 into well A1 of the 24-well plate. 2. Place 10 drops of Magnesium sulfate‚ Mg SO4 into well A2 of the 24-well plate. 3. Place 10 drops of Zinc nitrate‚ Zn(NO3)2 into well A3 of the 24-well plate. 4. Place 10 drops of Iron (III) chloride‚ FeCl3 into well
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how different metals react to different solutions. III. Hypothesis: IV. Materials: Dropper‚ Beakers‚ wax pencil‚ Goggles‚ eight test tubes‚ a rack for the tubes‚ three strips of Zinc‚ two strips of Copper‚ three strips of Magnesium‚ steel wool‚ Lead nitrate‚ Silver nitrate‚ Copper sulfate‚ Magnesium chloride‚ Zinc chloride‚ Sodium chloride‚ and Potassium. V. Procedure: In tube 1 add five drops of Lead nitrate. In tube 2 add five drops of Silver nitrate. Drop a strip of copper metal into tubes
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promoted. Hypothesis: I predict that air (oxygen) and water are necessary for iron to rust. The nail in water with air will rust while the nails in dry air and in boiled water with no air will not. I also predict that galvanizing the nail with zinc and greasing the nail and painting the nail and electroplating the nail will inhibit rusting. I also predict that adding NaCl to the test tube with water and air will promote rusting of the iron nail. Background information: Rusting is the chemical
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7. Added zinc‚ Zn (s). | bubbles‚ zinc turns white | 8. Poured off liquid and rinsed | reddish specs‚ blue-ish liquid | Materials * 250 mL beaker * 100 mL beaker * 2 graduated pipettes * 50 mL graduated cylinder * Funnel and filter paper * Spatula * Copper power‚ o.i g * 8 M nitric acid‚ HNO3‚ 2 mL * 1 M sulfuric acid‚ H2SO4‚ 15 mL * 8 M sodium hydroxide‚ NaOH‚ 2 mL * Stirring rod * Hot plate * Beaker tongs * Balance * Zinc fillings
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Density of Metals Problem: How does the mass and volume help determine the density of known metal samples? Hypothesis: When comparing the density of Zn(zinc) and Cu(copper)‚ you will find that Copper is more dense than Zinc. You can test this out by using the density formula D=m/v. Materials: * 2 metals (options: zn‚ al‚ or cu) * 3 samples of each metal (small‚ medium‚ and large) * Scale/Balance * Calculator * Water * Graduated Cylinder Safety: * Be prepared for your
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Iron‚ which has the chemical symbol Fe‚ is an extremely useful metal and the most common element 0n the planet Earth. Here are some of the more common uses of iron in the world today. Uses of Iron * Iron catalysts are used in the Haber-Bosch Process to produce ammonia and the Fischer-Tropsch Process to convert carbon monoxide to hydrocarbons used for fuels and lubricants. * Iron metal is strong but is also quite cheap. Therefore‚ it is the most common metal in use today. Most automobiles
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U-shaped spiral rock breaking machine manufacturer nail on the adjustment ring ‚ injected between zinc alloy‚ making it closely‚ when a new installation or replacement of rolling acetabular wall ‚ in after 6-8 hours ‚ you should check its fastening and tighten the U -shaped bolt again. 7 replace cone crusher wall ‚ cone crusher crushing cone wall is fixed to the body with a conical head ‚ between two zinc alloy casting ‚ after a new installation or a new replacement cone crusher wall 6-8 hours should
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place. Independent- The time when Zinc powder is adedd to the water‚ and the amount of Zinc‚ and the water in the cup. Dependent- Change of Water temperature. Materials -Measuring Celinder-Copper Sulphate Solution ( 1M CuSO4) -Polystyrene Cup- Zinc Powder -Balance-Thermometer -Watch or a Clock with second hand- Safety Spectacles Procedure First‚ we measured 25 ml of Copper Sulphate Solution into a Polysterene Cup. Then‚ we weighed 6g of Zinc Powder on a piece of paper. We
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