Sample Lab Report for CHM 152 Name Lab Partner(s) Abstract: The physical properties‚ including the boiling point‚ density‚ and refractive index were measured for unknown liquid #16. The infrared (IR) spectrum of the compound was also taken. Based on the data collected‚ it was determined that the compound was likely to be salicylaldehyde. Introduction The purpose of this experiment was to determine the identity of an unknown organic liquid by measuring some of its physical
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Stimulus-Dependent Lab A motor unit is a motor neuron and the muscle fiber it controls. A whole muscle is made up of hundreds of motor units that are handled by different motor neurons that react at different levels of stimulation. The electric shock acts as an action potential by changing the membrane permeability allowing the sodium and potassium ions to pass through. At different levels of stimulation the motor neurons stimulate a motor unit and the more stimulation the more motor units become
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CHM142L/B21 Concepcion‚ Jermin B. Group# 2 Experiment No. 1 ------------------------------------------------- MELTING POINT AND BOILING POINT OF ORGANIC COMPOUNDS ------------------------------------------------- ABSTRACT The melting point (MP) and the boiling point (BP) are probably the most widely used physical constant in the field of science. Determining the boiling point and the melting point of a compound helps you to characterize an unknown solid in a quick‚ easy and cheap way. The temperature
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Introduction “Eat That Frog!: 21 Great Ways to Stop Procrastinating and Get More Done in Less Time” by Brian Tracy‚ is the book I want to recommend‚ which provides 21 effective methods of conquering procrastination and accomplishing more. The reason why I choose this book is that I always want to improve my productivity. This book teaches methods in-depth details how to improve people’s efficiency in order to achieve their goals. I would first give a brief summary of the concepts and ideas brought
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Once the juice arrived in the boiling house‚ it was contained in clarifying vats and lime was added. It was then boiled in cast iron "coppers" of diminishing size. The furiously hot liquid would be skimmed and ladled into the next smaller copper until it reached just the right consistency and was diverted to a wooden trough leading to wooden flats where it was allowed to cool. The slaves who mastered the boiling stage of the refining process were some of the most highly valued workers on a plantation
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The green tree frog is considered to be one of the most beautiful frogs in North America. It is active at night and would rather climb than jump. The scientific name for the tree frog is Hyla cinerea while the common name is green tree frog. Hyla means tree frog. The green tree frogs are native to Southeastern USA throughout the Florida‚ Georgia‚ Eastern Virginia‚ and East and Central Texas. They are primarily found in habitats with floating vegetation‚ debris‚ grasses and cattails. They would most
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In "The Celebrated Jumping Frog of Calaveras County‚ Mark Twain creates some memorable characters. The longer a character appears‚ the more sides you see of them and the more believable they become. They contrasted with what Easterners of the era expected‚ which made them even more appropriate‚ realistic‚ and likable. The main protagonist in the story is a man in Simon Wheeler’s narration named Jim Smiley. Showing many sides to his character‚ Jim is obviously a round character‚ showing emotions including
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Justin Davis Period 1 9/24/2012 The Bunsen Burner and Boiling Water The Bunsen Burner is a piece of laboratory equipment that produces a single flame which is used for heating‚ sterilizing‚ and combustion. The gas used in Bunsen burners can be natural gas like methane‚ or propane‚ butane‚ or a mixture of both which are all liquefied petroleum gas. The Bunsen burner was named after a man named Robert Bunsen. In 1855 Robert Bunsen invited the Bunsen burner and it is now used all over the world
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A researched examination into the critically endangered frog species‚ Heleophryne rosei‚ with specific regard to its habitat‚ ecology and population. In addition to the various threats this species faces and conservation actions implemented to safe–guard its remaining numbers. L.S. Maistry - 212510816 Department of Life Sciences ‚ University of KwaZulu – Natal‚ Private Bag X 01‚ Scottsville‚ 3209‚ Pietermaritzburg‚ South Africa . Submitted: 19 August 2013 The focus of this assignment is a researched
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repCHEMISTRY I - LABORATORY EXERCISE MANUAL LABORATORY EXERCISE 10: Melting Point and Boiling Point Determination This is a traditional lab. You’ll simply follow the step-by-step procedure‚ keeping records of your measurements and observations. Each student will write their own lab report‚ which should include the following: Name: Names of lab partners: Date of Experiment: Date Report Submitted TITLE: Purpose: A brief statement about what the experiment is designed to determine
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