Lab‚ Week # 1 BALANCE LAB Introduction The purpose of this lab is to learn how to utilize two different balances to find the mass of different chemicals in the ChemLab program. A balance is an instrument used to determine the mass of a chemical. To accomplish this we use direct weighing and weighing by difference on both the centigram and electronic balances. Equipment 1 Centigram Balances 1 Electronic Balance 1 100ml Beakers 5 Copper Slugs 2 Unknown Weights (Label # 1‚ # 2)
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Interpretation of Results As observed by the group in a normal diode circuit placed in a forward bias generates a sinusoidal output wave. In order to trim the output waves‚ that are a sinusoidal wave‚ to be generated‚ a clipper circuit was made with the use of diodes. The limiting level of a clipper circuit is the barrier potential of the diode in use. A diode clipper that trims down the positive half cycle input of a wave signal is as positive limiter. The output signal will retain the original
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EXPERIMENT 1 “HOW DO I LOVE THEE LET ME COUNT THE WAYS...” DETERMINATION OF AVOGADRO’S CONSTANT Techniques Calibration drop counting MSDS available for • • stearic acid‚ CH3(CH2)16COOH cyclohexane‚ C6H12 Principles molar volume molecular structures surface areas and volumes Avogadro’s constant percent error Recommended Advanced Reading Chapter 3 in Petrucci‚ Herring‚ Madura‚ & Bissonnette’s General Chemistry‚10th Ed. Avogadro Constant...1 INTRODUCTION
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Extended Experimental Investigation | May 28 2013 | Drosophila melanogaster lab experiment Question: How do the dominant or recessive genes in particular traits in a cross between a male and female Drosophila determine the traits of its offspring? Aim: to establish whether characteristics produced from the offspring of a drosophila cross are recessive or dominant traits. Hypothesis: If certain phenotypes are expressed in the offspring from the cross of certain Drosophila‚ then the determination
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Experiment 4: Heating Under Reflux- Synthesis of Salicylic Acid from Wintergreen Oil Precious Ahmed ID# 6463614 Section 07‚ Friday afternoon Lab experiment performed on: Friday‚ January 19‚ 2013 Lab report submitted on: Friday‚ January 24‚ 2013 Introduction Before the synthetic aspirin of today‚ salicylic acid‚ which is the important ingredient found in aspirin‚ was extracted naturally from methyl salicylate found in Wintergreen oil‚ which could be found in certain plants. The purpose
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LAB 1 Background and Hypothesis: I know I haven’t passed the lab 1 H and B but I really do not want to lose points again just for the fact I didn’t get it done in time. I already lost -5 pts and I really don’t want to lose -20 pts. So I am just gonna go on a whim here and just get it done through here so it doesn’t automatically fail me without me at least trying. Background: Test to see if people who are Left Handed would be left thumb dominant and compare to see people who are Right Handed
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1. Teams in health care settings can enhance performance‚ responsiveness to patients‚ and health care motivation by working intensely with one another to achieve a specific common goal or objective. Teams can help an organization gain a competitive advantage because it can enhance its performance; increase its responsiveness to customers‚ increase innovation‚ and increase employees motivation and satisfaction. You also create synergy which performance gains that results when individuals and departments
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Laboratory Techniques and Measurements (adapted from Labpaq Version 09.1.06 by Peter Jeschofnig‚ Ph.D.) Experiment Summary You will have the opportunity to learn how to conduct measurements in mass‚ volume‚ and density using scales and common laboratory equipment. Review the safety materials and wear goggles when working with chemicals. Read the entire exercise before you begin. Take time to organize the materials you will need and set aside a safe workspace in which to complete the exercise
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see/hear the information with your own eyes/ears Exercise 3.2.2 Application Presentation Session Transport Network Data Link Physical Exercise 3.2.3 1. The data link layer checks the data-link trailer to see if the data is in error. 2. If the data is in error‚ it may be discarded‚ and the data link layer may ask for the data to be retransmitted. 3. If the data is not in error‚ the data link layer reads and interprets the control information in the data-link header. 4. The data link layer strips
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It would be nearly impossible to have the transportation of vesicles without kinesin to guide it. And without the transportation of these synaptic vesicles to release their neurotransmitters‚ there would be no movement in the cell at all. This experiment is so important because vesicle transport in neurons helps to identify many neurological disorders. One such example is a research on Drosophila. Since there is only one kinesin light gene in the subject‚ the mutants in that one chain gene exhibit
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