Melting Point Determination Identity and Purity of Solid Organic Compounds Objectives • To introduce the technique of melting point determination. • To use the concept of melting points for identification and characterization of organic compounds. • Properly fill and use a capillary melting point tube. • Determine accurate melting point ranges for a wide variety of organic substances. Introduction The melting point of a solid can easily and accurately be determined
Premium Temperature Melting point
software and were very limited in function and communications capability. In August 1973 IBM announced the IBM 3650 and 3660 Store Systems that were‚ in essence‚ a mainframe computer packaged as a store controller that could control 128 IBM 3653/3663 point of sale registers. This system was the first commercial use of client-server technology‚ peer to peer communications‚ Local Area Network (LAN) simultaneous backup and remote initialization. By mid-1974‚ it was installed in Pathmark Stores in New Jersey
Premium Point of sale
sales transaction and monitoring of sales. B. Specific Problem: 1. Slow transaction 2. Unorganized sales reports * Objectives of the Study A. General Objectives: The general Objectives of the study is to generate an Point of Sales and Inventory System for the Bernada’s Store to eliminate the difficulties in sales transaction and monitoring of sales. B. Specific Objectives: 1. To make the
Premium Sibling Credit card English-language films
SECTION I 1.1 Introduction Nowadays‚ data processing uses one or more database at one or more certain organizations. Databases are use in transaction processing where information are stored‚ retrieved and transmitted at certain time it is needed. Examples of transaction processing systems are airline reservation systems‚ billing system‚ payroll system‚ library system‚ online marketing and online transaction processing. Handling business is not an easy thing to do. In order to have a successful
Premium Point of sale
Course grades are comprised of the following components: (1) 4 Tests (100 points each): Tests will cover the information presented in both the lectures and the text. Each of the four tests will cover the unique section of material outlined in the syllabus‚ is worth 100 points‚ and will consist of multiple choice questions (approx. 80% of each test) and short answer essays (approx. 20% of each test). Item content will focus on central concepts‚ definitions‚ and theories of psychology. The final exam
Premium Psychology Multiple choice
Introduction The purpose of the experiment was to determine the melting points of compounds using a Mel-Temp device. The melting point of naphthalene‚ urea‚ and sulfanilamide are found. This is then followed by the measuring of an unknown compound‚ and an impure sample (a small amount of naphthalene mixed with the unknown). Experiment In the lab‚ the height of the chemical in the capillary was set to 2-3 mm thickness. The voltage at the Mel-Temp started at a low setting of 1.5-2. The heat was
Premium Temperature
Chapter 5 The Five Generic Competitive Strategies Screen graphics created by: Jana F. Kuzmicki‚ Ph.D. Troy State University-Florida and Western Region 5-1 McGraw-Hill/Irwin © 2005 The McGraw-Hill Companies‚ Inc. All rights reserved. “Competitive strategy is about being different. It means deliberately choosing to perform activities differently or to perform different activities than rivals to deliver a unique mix of value.” Michael E. Porter Strategy and Competitive Advantage Competitive
Premium Strategic management Value chain
importance of point of view in literature and‚ more specifically‚ in the short story. Choose one short story from the course text about which you have not yet written‚ and analyze it in terms of point of view. When writing your post‚ consider the following questions * How would you categorize the point of view [e.g.‚ first-person‚ second-person (i.e.‚ “you”)‚ third-person limited‚ third-person omniscient]? * Is the point of view consistent throughout the story (told from the same point of view)
Premium Fiction
disagreements‚ there always was light at the end of the tunnel. However‚ eventually the colonies and Great Britain reached a standoff‚ a point of no return that forever created an icy‚ tense relationship between the two. A point of no return is crucial to any relationship because it is the point in time where no matter what‚ the past cannot be made up for. The mistakes
Premium United States England Thirteen Colonies
The Tipping Point is the “biography of an idea‚” that a good way to think of “any number of [any] mysterious changes that mark everyday life is to think of them as epidemics. Ideas and products and messages and behaviors spread just like viruses do.” (7) There are three basic characteristics of change — “one‚ contagiousness; two‚ the fact that little causes can have big effects; and three‚ that change happens not gradually but at one dramatic moment…” (9) “The name given to that one dramatic moment
Premium The Tipping Point Infectious disease