follows- * copper is 8‚888 psi * Aluminum is 6‚666 psi * Polyester is 9‚696 psi 3. Determine the Elastic Modulus of the specimens: * The Modulus of Elasticity for copper specimen is 16‚687 ksi.‚ figure 4. * The Modulus of Elasticity for Aluminum specimen is 89‚991 ksi‚ figure 5. * The Modulus of Elasticity for Polyester specimen is 136‚532 ksi‚ figure 6. Figure 4 Figure 5 Figure 6 4. Determine the Modulus of resilience and toughness of samples: * Copper: resilience=2304
Premium Tensile strength Elasticity Aluminium
UNIVERSITY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF CHEMISTRY TITLE: ANALYSIS OF COPPER IN BRASS BY UV-VISIBLE SPECTROSCOPY NAME: OPOKU ERNEST DATE: 21ST JANUARY‚ 2014 Page 1 of 9 TITLE: ANALYSIS OF COPPER IN BRASS BY UV-VISIBLE SPECTROSCOPY AIMS AND OBJECTIVES: By the end of this experiment‚ the student should be able to demonstrate the following proficiencies: 1. To determine the percentage of copper in brass by UV-visible spectroscopy. 2. Properly calibrate and use a spectrophotometer
Free Electromagnetic radiation Light Photon
Title: Cookie Mining Lab Introduction: Like most resources‚ minerals are distributed unevenly around the world. Minerals are concentrated in various areas of Earth’s crust due to natural processes. Obtaining these minerals for human use involves four general steps: 1. locating the minerals 2. extracting the minerals from Earth in the form of ore or rock 3. processing the ore to separate the impurities from the desired mineral 4. creating a useful product from the minerals Objectives:
Premium Mining Land reclamation Chocolate chip cookie
OLD COINS TURN TO GOLD DESIGN: Problem or Research Question: How does zinc effects the color change in a copper penny? Hypothesis: If copper and zinc comes together‚ then it will form brass‚ which gives gold color to copper penny. Variables: There were no variables at this experiment PROCEDURES: Materials: Zinc (SN) filling‚ 3M NaOH solution‚ Copper penny‚ tongs‚ Hot plate‚ 100 ml beaker‚ 250 ml beaker‚ Bunsen burner‚ Water‚ Spoon. Procedure: First‚ we turned on the hot plate.
Premium Zinc Primary color Copper
tetraamminecopper(II) ion by colorimetry. Anhydrous copper sulfate (CuSO4) is white‚ which means that it does not absorb light in the visible region of the spectrum. The hydrated copper sulfate (CuSO4 - 5H2O) is blue. The structure of the compound can be represented more accurately as Cu(H2O)4 SO4 - H2O where four water molecules are bound to the copper ion and the fifth is a water of crystallization. The water molecules are arranged at the corners of a square‚ with the copper at the center. Such an arrangement
Premium Ammonia Chemistry Copper
Experiment 4 Composition of a Post-1983 Penny Lab Report Background: Through the use of percent composition one can easily find out how much of a certain element is in a compound or an item such as a post-1983 penny. The experiment will be using HCl a strong acid to dissolve all the zinc inside the outer copper shell. The reaction follows as such; Zn+2HCLZnCl2+H2‚ but there will be no reaction with copper. The portion that will be measured is the mass of copper left after all of the Zn goes through the
Premium Copper Zinc Hydrochloric acid
place about 1 mL of tap water on a clean watch glass and gently heat it until water has evaporated. Record if there is any residue and repeat this procedure using deionized water. Next‚ for Water of Hydration section‚ obtain a few crystals of hydrated copper(II) sulfate‚ describe their appearance on the data sheet. Then place the crystals into an evaporating dish‚ place a watch glass over the top of the dish and heat to drive off the water. Move the
Premium Chemistry Chemical reaction Water
Chemistry Lab Report (Redox Reactions) Questions: • What will happen when you put zinc in copper II sulfate? • What will happen when you put copper in copper II sulfate? Predictions: • We can predict that zinc will react with the aqueous solution of copper II sulfate and we will notice a reaction. We can also predict that the copper will not react with the solution of copper II sulfate and no reaction will be noticed. Hypothesis: • It is hypothesized the zinc metal will have a precipitation reaction
Premium Water Chemistry Chemical reaction
the formula of the compound) are expressed in this experiment. In this experiment‚ the goal was to find the formula of copper sulfate pentahydrate by heating a sample of the blue compound in order to evaporate the water and receive the white-colored copper sulfate anhydrous. Using the mass of the original sample of copper sulfate pentahydrate subtracted by the new mass of the copper sulfate anhydrous‚ the mass of water lost is obtained and used to find the empirical formula. The expectation for
Premium Chemistry Water Molecule
College Chemistry 1 Lab 16 Oxidation Reduction Lab 16 Introduction: I will learn about redox reactions. Materials and Methods: I placed ten drops of each substance into different wells. Then I took Magnesium and put it in the first one. I put Zinc into the second one. I placed lead into the third and fourth one‚ and put iron into the fifth one. Results: See Table Below. Discussion: I learned about different redox reactions. Questions: A. Sodium
Premium Chemical reaction