of this multi-step lab was to synthesize 4-hydroxy-4‚4-diphenylbutan-2-one from ethyl acetoacetate. The Grignard reaction is widely used to react with ketones and aldehydes to give alcohols‚ however‚ it cannot selectively retained carbonyl groups already present in a structure.1‚2
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Exercise 25 Special Senses: Hearing and Equilibrium Answers to Pre-Lab Quiz (pp. 383–384) 1. three 2. a‚ auricle 3. tympanic membrane 4. d‚ stapes 5. a‚ cochlea 6. otoscope 7. b‚ Rinne 8. b‚ internal ear 9. macula/vestibule 10. c‚ involuntary trailing of eyes in one direction‚ then rapid movement in the other Answers to Activity Questions Activity 4: Conducting Laboratory Tests of Hearing (pp. 387–388) Acuity Test The threshold is indefinite. Sound Localization No‚ the sound is less easily located
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Module One: Lab Questions 1. Describe some of the influence of Latin music in the US in the early part of the twentieth century. • Latin music in the U.S. has given rise to new styles of music‚ such as Reggaeton and Latin Jazz. This has created a cultural infusion and melting pot within America. 2. What was the significance of "Machito and His Afro-Cubans"? • The significance of “Machito
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Classification of Body Membranes Exercise 1: The Microscopic Structure of Cutaneous Membranes 1. 2. Observations: Sketch your observations from the microscope slide in the lab report assistant. Indicate the keratinized layer on the sketch and describe the observed structures and cells. Questions: A. What is keratin? The fibrous protein that helps give the epidermis its protective properties B. Why is the skin keratinized? To help protect itself Exercise 2: Microscopic Structure of Mucous
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Population? Lab Notebook Global Warming Data Table Number of: Size Color Large Medium Small Black Brown Parental generation 2 22 2 22 3 10th generation 0 20 5 25 0 20th generation 0 10 20 25 0 30th generation 0 3 22 25 0 Graph your Global Warming data‚ using this key: Large leafhoppers = • Medium leafhoppers = O Small leafhoppers = • Black leafhoppers = X Brown leafhoppers = X in color Predator Change Data Table Number of: Size Color Large Medium Small Black Brown Parental generation 1 22 2
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XXXXXXXXXXXX NETW410‚ Professor’s Name 10/6/12 Lab 4: Connecting Point A to Point B Lab Report How should an Internet connection be made for the current campus? Why did you select this option over the others? AT&T is the carrier providing service to the existing campus as well as the new campus. Examine the offerings for Internet access to select the one that should be used. (10 points) ST which is made by at&t is the most popular connector for multimode networks‚ like most buildings
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Also‚ imagine having to carry various inhalers and oxygen as part of an everyday routine. This is how it feels to have Alpha-1 Antitrypsin Deficiency‚ also known as early onset emphysema. For someone with Alpha-1 Antitrypsin Deficiency‚ everyday tasks can seem nearly impossible. Simply walking upstairs or raking leaves
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ESTIMATION OF 1-4‚ DIOXANE IN SHAMPOOS/ CONDITIONERS/HAIR CREAMS/ SODIUM LAURETH SULFATE BY HEAD SPACE GAS CHROMATOGRAPHIC TECHNIQUE INTRODUCTION 1-4‚ DIOXANE 1‚4-Dioxane is a heterocyclic organic compound‚ classified as an ether. It is a colorless liquid with a faint sweet odor similar to that of diethyl ether. The compound is often called simply Dioxane because the other Dioxane isomers (1‚2- and 1‚3-) are rarely encountered. CHEMISTRY OF 1-4‚ DIOXANE
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Lab: investigating hooked law with springs Purpose: to find spring constants of different springs using the slope of a graph of change in heights vs. the weight force. Also‚ to be able to understand how spring constants change when you add springs in a series or paralle Pre lab predictions: We predicted that the graph of gravitational force (mg) as a function of stretch (delta x) would look like Data: Spring #1: y = 8.2941x + 0.0685 This table represents the different distances that
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Post Lab Report Experiment 3 - Chromatography – Analyzing Analgesics by TLC and Isolation of β–Carotene by Column Chromatography Chemicals 1. Acetaminophen (C8H9NO2) 2. Aspirin (C9H8O4) 3. Caffeine (C8H10N4O2) 4. Ibuprofen (C13hH18O2) Introduction In this experiment‚ several analgesics were analyzed by Thin Layer Chromatography (TLC) and the composition of an unknown tablet was identified. We define chromatography as the separation of two or more compounds or ions by
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