Purpose: To determine the colors of the Atomic Emission Spectra of several metallic ions. Materials: Safety glasses 10 test tubes Test tube rack Paper Pencil 50 mL beaker Bunsen burner Nichrome wire Barium Nitrate Copper Nitrate Strontium Nitrate Lithium Nitrate Potassium Nitrate Sodium Chloride Calcium Nitrate Unknown solutions A‚B‚ & C Hydrochloric Acid Wash bottle (with distilled water) Procedure: 1. Label the test tubes with the names of the solutions and unknowns. 2. Place
Premium Metal Ammonia Potassium
1 2 3 4 5 6 7 8 9 10 Topic General Intro; Atomic Bonding Crystalline Structures; Imperfections Diffusion; Mechanical Properties Strengthening Mechanisms; Failure Phase Diagrams Phase Transformations Applications & Processing of Metal Alloys Struc.‚ Prop.‚ Proc.‚ Applic. of Ceramics Struc.‚ Prop. of Polymers; Composites Corrosion; Elec. & Thermal Prop. Magnetic & Optical Prop. Econ. & Envir. Issues Chapter 1‚2 3‚4 5‚6 7‚8 9 10 11 12‚13 14‚15‚16 17‚18‚19 20‚21
Premium Materials science Electrical conductivity Resistivity
soft silver metal. If Gallium is held in someone’s hand log enough‚ it will melt. Gallium will melt at a temperature of 85 degrees‚ which is slightly above room temperature. Through the era of semiconductors‚ gallium was used as an agent to make allots that melt at a low temperature. The element gallium is a byproduct of the production of aluminum and zinc. Most gallium is extracted from the crude aluminum hydroxide solution of the Bayer process. Gallium easily bonds with most metals and is often
Free Periodic table Chemical element Chemistry
Case Study Finance - EDHEC MBAUnited Metal | | Background We refer to the case in the finance textbook for the details. Throughout our efforts in determining the right decision for United Metal‚ our team decided to calculate the difference between the ‘Make’ or ‘Buy’ options‚ using the numbers given in the case. However‚ in order to determine the net present value (NPV) and make appropriate recommendations‚ a risk adjusted discount rate (rate-of-return or ‘r’) needs to be incorporated.
Premium Investment Net present value United States dollar
fractions in cores MD and SH are given in the Table 2. In core MD‚ Fe‚ Mn‚ Ni‚ Co and Cr were highest in the residual fraction. Metals viz. Fe‚ Ni‚ Co and Cr were present in more than 65 % in the residual fraction‚ while Mn was around 40 %. Next to the residual fraction‚ Mn‚ Ni and Co were present in the Fe-Mn oxide fraction‚ while Fe and Cr in the organic bound fraction. Metals viz. Fe‚ Ni‚ Co and Cr were available in least concentration in the carbonate fraction. Manganese was least in the organic bound
Premium Oxygen Metal Iron
You can download OpenMRS from the OpenMRS web site. http://openmrs.org/download/ There are two ways to install OpenMRS: Standalone‚ and Enterprise. You must have Java 6 or higher installed on your system to run OpenMRS. OpenMRS Standalone provides a simplified installation option with an embedded database and web server. It is a great way to evaluate and explore OpenMRS‚ letting you get a local version up and running within minutes‚ and includes download options with sample data. OpenMRS
Premium WAR User
with the standards. The purpose of this experiment is to analyse the hardenability of the three materials such as EN-3 (1015)‚ EN-8 (1040) and EN-24 (4340). 1.2 Objectives The test has following objectives‚ to check the hardenability of different metals‚ the effect of carbon on the material’s hardenability and the comparison of the link between the microstructure and the cooling rate [1]. 1.3 Additional Comments The results are plotted as functions of distance from the quenched end‚ yielding hardenability
Premium Steel Tensile strength Welding
GOFFMAN‚ SCHEFF AND SCASZ ARGUE THAT MENTAL ILLNESS IS A SOCIAL CONSTRCUTION. Mental illness is a general term referring to psychological‚ emotional‚ or behavioural disorders as well to the view that these disorders are diseases of the mind. Because it’s more to do with the psychological aspect‚ methods of treatment are different from a physical disability. A physical disability may involve treatment like acupuncture and traditional medicine whilst a mental illness (disability) treatment involves
Premium Sociology Schizophrenia Mental disorder
Strontium Sr2+ Potassium K+ Lead Pb2+ Barium Ba2+ Copper Cu2+ Lithium Li+ Calcium Ca2+ Unknown Questions A. All chemical used in this test are binary compounds. What portion of the periodic table is responsible for the color observed? The metals are responsible for the Color change B. In cooking over an open flame‚ a yellow flame is often observed when some food is spilled into the flame? What is most likely responsible for the yellow flame color? Sodium within the food is likely the
Premium Light Potassium Metal
have been precipitated by microbes which include carbonates‚ sulphates‚ silicates etc [1]. Amongst all these‚ carbonates are the most common minerals formed. Carbonate precipitation has been applied in several fields ranging from removal of heavy metals and radio nucleotides‚ waste water treatment‚ biodegradation of pollutants‚ CO2 sequestration and filler in rubber and plastics and greatly in remediation and restoration
Premium Water Calcium Mineral