IndexObjectivesMaterialsProcedureOverview:In this shop we will conduct, observe and measure the electroplating process. This process is used to deposit a layer of metal, such as chromium, copper, or gold, onto another metal. As a commercial process, electrolytic coatings are used to improve the appearance, resist corrosion, or improve the hardness of metal surfaces. This experiment describes a method of producing a copper coating on a brass key or other suitable metal object. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay We will prepare an electrochemical cell using a copper strip as the cathode (positive terminal) and a brass key as the anode (negative terminal). The electrodes are immersed in a solution containing acidified copper (II) sulphate. When we apply a potential to the electrodes, we will actually transfer the Cu atoms from the anode to the surface of the brass key. Some of the purposes for which items are galvanized are: Appearance Protection Special surface properties Engineering or mechanical properties. Objectives In this experiment: I. Prepare and operate an electrochemical cell to plate copper on a brass surface.II. Measure the amount of copper deposited in the electroplating process.III. Calculate the amount of energy used to complete the galvanization process. Material electrolyte solution (CuSO4 in H2SO4) vinegar Vernier probe cm × 10 cm copper strip DC power volts brass key four connecting wires with alligator clips solid sodium chloride, NaCl steel wool analytical balance two beakers 250 ml bare copper wire, 20–22 gauge distilled water Procedure Obtain and wear safety glasses. Use steel wool to clean a brass key and a copper strip, which will form the electrodes of the electrochemical cell. Mix 3 g of NaCl with 15 mL of vinegar in a 250 mL beaker. Wash the key and copper strip in this salt/vinegar solution. Rinse the key and copper strip with distilled water and dry each piece of metal. Use an analytical balance to determine the mass of the key and the mass of the copper strip. Record these two masses in the data table. Fill a 250 ml beaker approximately 3/4 full with the electrolyte solution. CAUTION: The electrolyte solution in this experiment is prepared in H2SO4 and must be handled with care. Attach a 7cm long bare copper wire to the brass key to act as a handle. Connect the wire to the anode alligator clip, so that the key will be completely submerged in the electrolyte solution but the alligator clip will not be submerged. Connect the copper strip to the positive cable. Get a DC power supply and a vernier current probe. Use alligator clip connection cables to connect the DC power supply, current probe and electrodes. See Figure 1 for the correct wiring configuration. Place the key and copper strip into the electrolyte solution in the glass. Make sure the key is completely immersed in the solution and keep the two electrodes as far apart as possible. Turn on the DC power source. Observe electrolysis. Note the slow deposition of copper on the surface of the key. The operation should take 30 minutes. When the key is fully galvanized, turn off the DC power source and carefully remove the copper strip and key from the electrolyte solution. Rinse the two metals with distilled water. Dry the copper strip and key very carefully, so as not to remove the copper..