17M acetic acid (acidified water) Solution of Sodium thiosulfate Granular zinc Iodine crystals Zinc ion and iodine-iodide-triiodide ion in water Solid zinc iodide Mineral oil Silver nitrate Magnesium turnings 3M Hydrochloric acid (HCl) solution 2 boiling tubes 1 large tube (we used a small) Pipet Beakers (to hold tubes) Bunsen burner PART 1 Procedure Get a boiling tube and label it R (reactants). Weigh out 2g of granular zinc and 2 g of iodine crystals and add to boiling tube “R”. Get a large test
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decrease in oxidation state. If zinc completely reacts with HCL‚ then the theoretical yield of copper should be equivalent to the actual yield. Purpose: In this lab‚ we will determine the percent composition of a modern (post-1982) penny by using a strong acid to react and dissolve the zinc core‚ leaving only the copper coating. Once only copper remains‚ we will compare its mass to the entire mass of the penny to determine how much of a penny is copper and how much is zinc. 1. Obtain one 50.0 mL beaker
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Undertaken at Hindustan Zinc Limited‚ Debari CONTENTS About the Company History of the Company Sections in HZL Power requirement Organizational Chart Basic Processes Done Mining Roasting Leaching Zinc Electrolysis Melting & Ingots Formation Zinc & Its Uses Project- SWITCHYARD Zinc Smelter Debari is a Hydrometallurgical zinc smelter situated at Debari‚ about 13 kms from Udaipur‚ in Rajasthan‚ India. The primary product of Debari is High Grade (HG) zinc and it also recovers
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1820s. Davy’s advice was sought by the Royal Navy in investigating the corrosion of copper sheeting used for cladding the hulls of naval vessels. Davy found that he could preserve copper in sea water by the attachment of small quantities of iron or zinc; the copper became‚ as Davy put it‚ “cathodically protected”. The
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Observation Zinc Shot: Silver color‚ some pieces are shiny while the majority is dull. Tear shaped pieces (round at base with pointed top). No odor. Zinc Granular: Silver in color‚ semi shiny‚ flaky appearance. No odor. Zinc Sheet: Sheet of metal‚ flat pieces that are about 3 inches wide & 2 inches in length & 0.02 inches in height. Each piece has a dull side and a shiny side. Silver in color‚ the dull side has a darker shade of gray. No odor. Zinc Powder: Gray very fine powder. No odor
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Section 12 1. Introduction: This lab focused on showing the reaction that takes place between zinc and iodine using only deionized water instead of acetic acid (or vinegar) as we did in the previous lab by adding acetic acid to zinc iodide. The purpose of this lab was to see how water created the reaction and another compound or precipitate. Focus Question: Zn(OH)2 was the product when zinc and iodine were reacted without the presence of acetic acid in the water. Confidence Report: I am confident
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products and the number of moles of reactants and products. PROCEDURE Polish the zinc strip using steel wool and then determine its mass. Allow the strip to sit in lead acetate for approximately an hour and observe the changes in the zinc strip. The zinc starts to accumulate particulate matter (lead particles) on its surface. This is cause by the chemical reaction that occurs between the lead acetate and the zinc strip. The strip is then rinsed in water and acetate and then dried. The particles
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Before the 1900s‚ tin was commonly used to package household foods. Since it protected the foods inside‚ and it could be bent with ease‚ it was regarded as an inexpensive‚ easy and health conscious way to keep foods fresh. Some of its disadvantages‚ which lead to its defeat to aluminum‚ included the fact that it could only be rolled thicker than aluminum; it became brittle when warm‚ reducing its malleability greatly‚ and the tin foil created a strange aftertaste‚ which was undesirable to many.
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resulting in current. The potato does not participate directly in the reaction. It is there rather as an electrolyte to facilitate the transport of the zinc and copper ions in the solution‚ while keeping the copper and zinc electrodes apart. The potato contains phosphoric acid (H3PO4)‚ which facilitates the electro-chemical reaction of zinc with copper. Zinc is an active metal‚ which reacts readily
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Kiley O’Toole Lab Report 3 Purpose The purpose of this lab was to uncover the number of layers of zinc atoms around a piece of galvanized iron. This was done by pouring the hydrochloric acid onto the galvanized iron‚ thus removing the zinc from the piece of metal. Laboratory Procedure 1. Measured and recorded the mass of a piece of galvanized iron using a centigram balance and a ruler 2. Measured and recorded the length and width of the galvanized iron using the ruler 3. Put the
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