08.06 Biochemistry and Technology 1. For the lesson‚ I chose the topic of animal cloning for agricultural needs. 2. The sources I used are http://www.fda.gov/AnimalVeterinary/NewsEvents/FDAVeterinarianNewsletter/ucm106070.htm http://www.understandinganimalresearch.org.uk/how/areas-of-research/animal-cloning/ 3. Cloning has always been something of science fiction‚ the ability to make an exact copy of an organism. Recently though‚ this sci-fi idea is more of reality than ever. Many have
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Experiment 12: Calorimetry and Hess’s Law Purpose: The purpose of this lab is to determine the enthalpy of reaction for the burning of one mole of magnesium in oxygen. Although the reaction is exothermic‚ the ∆HRXN will be determined by using calorimetry and then using Hess’s Law to manipulate the data collected to yield the answer needed. Procedures: Dillon‚ Stephanie. “ Calorimetry and Hess’s Law.” Laboratory Manual. Pearson Publishing‚ 2012‚ pp.168-177. Data and Results Part A
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solution Red-Orange Ni(NO3)2 Transparent‚ blue Green-Blue Unknown A Colourless solution Green Unknown B Colourless solution Light Purple Unknown C Colourless solution Bright Orange Unknown D Colourless solution Dark Red Questions: 1. Unknown A Ba(NO3)2 Unknown B KNO3 Unknown C NaCl (aq) Unknown D Sr(No3)2 2. The ranking would be as follows: Sr(NO3)2 ‚ LiNO3‚ Ca(NO3)2‚ NaNO3‚ Solid NaCl‚ NaCl‚ Ba(NO3)2‚ Cu(NO3)2‚ Ni(NO3)2 and lastly KNO3. 3. Most of the anions are
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Chemistry 121 Colligative Properties Lab Demonstration of Selected Calculations from Choice I Determination of Kf for Naphthalene To determine the Kf for naphthalene‚ we need to find the difference in the freezing point of pure naphthalene and the solution of 1‚4-dichlorobenzene in naphthalene. Let’s say that we did this experiment‚ used 1.00 g 1‚4-dichlorobenzene in 10.00 g naphthalene‚ and found that the freezing temperature of pure naphthalene was 78.2°C‚ while that of the solution was 75
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The purpose of this lab was to see which solutions are soluble and which are not. We were able to see this by mixing certain solutions together and observing changes that occurred. The procedure for this experiment included a few different steps. The first steps were to add the nitrate solutions into the lettered parts of the 96-well plate. Once you were done with that‚ you were supposed to add the sodium solutions to the numbered parts of the 96-well plate‚ so that the solutions were added together
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CNE 251 – LAB 07 Project 7-1: 3) Yes the stdout reads both sample1 and sample2. There is a stderr message due to sample3 not existing / being found. 4) You do receive an error as it is trying to find sample3 which does not exist. 5) The contents of the file listed are sample1 and sample2….again sample3 does not exist. 6) There are the sample1 and sample2 results from the ls. Sample3 is not listed. 8) There is not stdout message or error message as a result of this. Nothing was changed from the previous
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05.03 Gas Laws: Lab Report Directions: Read/ Study all the lesson information in the 5.03 lesson then click the activity tab to perform two virtual labs. (There are recorded Teaching Videos for lesson 5.03. To view them click the “Help Sign” on the announcement page. Next scroll down to Lesson 5.03 stuff and you should see 5 part video links that will cover the lesson content.) Virtual Lab 1- Part I: Boyle’s Law A sample of gas is trapped in a sealed container‚ which has a movable lid. Moving
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A) Purpose: 1. to recognize the macroscopic properties of five chemical systems at equilibrium 2. to observe shifts in equilibrium concentrations as stresses are applied to the systems 3. to observe a shift in equilibrium concentrations associated with changes in temperature 4. to explain the observations obtained by applying Le Chatelier’s principle Materials Required: See page 209 Heath Chemistry Laboratory Experiments Procedure: See pages 209-211 Heath Chemistry Laboratory Experiments
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ATLANTIC COLLEGE CHEMISTRY DEPARTMENT (Written by Dr Geoffrey Neuss) CONTENTS Page Introduction 1 Assessment of Practical Work 3 Error and uncertainty 7 Significant figures 8 Title 1. Some common chemical reactions. 9 2. A traditional acid-alkali titration. 10 3. Analysis of aspirin tablets
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October 13‚ 2012 Needle through a Balloon Pre-Lab Preparations: Purpose: The purpose of this experiment is to see if the balloon pops when pierced with a wooden skewer or a sharp pin. Hypothesis: If we lubricate the skewer with petroleum jelly‚ then it should go through the balloon without popping. Hypothesis for the 2nd part of the Lab: If we cover the side of the balloon with cellophane tape‚ then it will not pop when pierced with the pin. Materials: • Balloons • Long wooden
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