Experiment #4 (10/31/14) Lab Review Objective To introduce the basic molecules of life and to test for their presence in different substances. Introduction Macromolecules are in all forms of life. These organic compounds are carbohydrates‚ lipids‚ proteins‚ and nucleic acids. These are monomers and they link together into long chains that form polymers. Different reagents can be used to find the presence of these macromolecules. Proteins are made of carbon‚ hydrogen‚ oxygen‚ nitrogen‚ and sometimes
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unimolecular dissociation step‚ a proton from one of the adjacent carbons is captured to reform the acid catalyst‚ and the elimination reaction is complete with the formation of the double bond. Water is distilled out of the reaction to promote a high yield of 4-methylcylohexene. By removing water‚ the reaction is forced in the forward direction due to Le Châtelier’s Principle. In order to determine
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4-nitroaniline had a percent recovery of 18.67% and naphthalene had a percent recovery of 80%. Naphthalene had a relatively high percent recovery‚ and the loss of product can be explained by error inherent. The low percent recovery of 4-nitroaniline is mainly due to the fact that anhydrous sodium sulfate was accidently added to the flask. Therefore‚ some product was lost as the aqueous solution with the protonated 4-nitroaniline reacted with the drying agent. However‚ more errors to explain the results
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Diana Nechiporuk Unit 1: Lab questions Hair Detective 1. Describe the crime that you are investigating in this activity. One of the sassy snips girls stole all the hair products that belonged to the guys. The guys found that out from the trail of glitter to the Sassy Snips room. I am trying to investigate who stole the hair products. 2. What evidence do you have to identify the culprit of the crime? The evidence I have is the hair gel. I know that the theif is one of the Sassy Snips girls. There
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Unit Five: Lab Assignment #1 1. How does Newton’s law apply to a company’s brand? Explain‚ citing at least one example. A= The more massive a brand the more force it need to change its position. 2. How does Heisenberg’s Uncertainty Principle apply to market research? Explain. A= With the active observing consumers changes their behavior‚ you are able to measure what the consumers actually do vs what they say they do. 3. How does the scientific method apply to marketing? Explain‚ citing an example
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1. Diffusion and Osmosis‚ June 4‚ 2013 2. Purpose: The purpose of this lab is to help give visual understanding of diffusion which is a solution of high concentration spontaneously (no energy required) moving to an area of low concentration. Also taking a look at osmosis‚ which is the movement of chemicals across the cell membrane. Osmosis requires some type of energy to be put in for this to happen. After these experiments we should have a better idea and visualization of how chemicals transfer
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Unit 4 Physics Notes Sunday‚ November 3‚ 2013 8:09 PM Any Single disturbance is called a pulse A series of pulses is called a wave In the case of the impatient student‚ his disturbance was parallel to the direction of the wave itself. Also called a Longitudinal Wave WAVES • Waves can transmit two things ○ Can transmit energy Ex. Light waves from the sun heat the earth ○ Can transmit information Ex. Radio wave When the motion of the particles is perpendicular to the motion
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BTEC Assignment Front Sheet (Centre No: 11058) Learner Name: Qualification: BTEC Level 3 Extended Diploma In Engineering (FW267) Unit Title: Health and Safety In the Engineering Workplace (T/600/0249) Unit Number: 1 Assignment Title: The concept of RIDDOR and the use of accident data Assignment No: 4 Hand in dates and times: Date of Issue: 02/09/2013 Submission is: Hand in/Due Date: 11/06/2014 ON TIME □ / LATE □ Copied work will be graded as a FAIL and disciplinary action may
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Adeoti Taylor Chem2583 Organic Chemistry Laboratory Class ID:8622098 Organic Lab 2 2583-04 Instructor: Andy Szalkiewicz 9/30/2014 Recrystallization Objective/Abstract: The purpose of this lab is to purify solids contaminated by relatively small amount of impurities by a technique called Recrystallization. Compounds that have different solubility at different temperature usually can be recrystallized. Formulas and Structures: Benzoic Acid Methanol Percent Recovery: Indicates how much of the
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Unit 9 Lab 1 1. Encrypt email‚ security software‚ content checking tool‚ anti-spam tool‚ and secure firewall configurations. 2. Certificate Authority or Certification Authority (CA) is an entity‚ which is core to many PKI (Public Key Infrastructure) schemes‚ whose purpose is to issue digital certificates to use by other parties. It implies a trusted third party. 3. An attacker can create a certificate for any domain. This certificate will appear to be signed by a trusted CA. Thus‚ you will see
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