Investigation of the point of incipient plasmolysis of onion cells (Allium cepa) using NaCl (Sodium Chloride) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M Design Research Question (Aim): The aim of this lab was to determine the point of incipient plasmolysis of onion (Allium cepa) cells using Sodium Chloride (NaCl) concentrations of 0.1M‚ 0.2M‚ 0.3M‚ 0.4M‚ 0.5M‚ 0.6M. Hypothesis: When the water concentration of a solution outside the cell is lower than the concentration inside the cell
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Freezing Point Depression Purpose: The purpose of this lab is to demonstrate freezing point depression by dissolving salt into two liquids and monitoring temperature. Materials: test tube‚ Thermometer‚ 10 mL graduated cylinder‚ 2 micropipettes‚ Styrofoam cups‚ 4 pieces plastic wrap‚ 70% ethyl rubbing alcohol‚ 91% isopropyl rubbing alcohol‚ ice‚ distilled water‚ rock salt Procedure: Using the graduated cylinder‚ measure 2 mL of alcohol and pour it into the test tube. Add 10 mL of
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City University of Hong Kong Dept. of Physics & Materials Science AP2104 Mechanics of Solids Laboratory Manual Experiment 1 Pure Bending of a Beam Experiment 2 Torsional Deformations Experiment 3 Yield Criteria for Ductile Materials under Plane Stresses Experiment 1 Pure Bending of a Beam Objective 1. To examine the stresses at various positions of the beam under a constant load of pure bending. 2. To determine the curvature of deflection of the beam. Introduction
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Synthetic‚ Structural‚ theoretical and biological study of triorganotin(IV) Schiff base complexes derived from amino acids Abstract A new series of triorganotin(IV) complexes of monofunctional bidentate Schiff base have been synthesized and characterized through elemental analysis‚ conductance measurements‚ molecular weight determinations‚ UV-visible‚ multinuclear (1H‚ 13C‚ 119Sn) NMR spectroscopy‚ FT-IR‚ X-ray powder diffraction and theoretical calculations. On the basis of these techniques‚ it
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Abstract: The Enzyme Lab results where when the liver was frozen‚ its reaction was fast‚ and when it was hot‚ it was slow‚ and the liver that was at room temperature reacted slowly to medium. Introduction: The Enzyme Lab is to conduct investigations to determine the most favorable conditions for the most efficient enzyme activity. Variables to be used testing include temperature‚ pH values and surface area. Enzymes are proteins that speed up the rate of chemical reactions‚ which would otherwise
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References: http://webs.mn.catholic.edu.au/physics/emery/measurement.htm#Measurement http://www.digipac.ca/chemical/sigfigs/experimental_errors.htm http://www.tsb.gc.ca/eng/rapports-reports/rail/2011/r11v0057/r11v0057.pdf
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Our Iceberg Is Melting is written by John Kotter‚ the leadership and change guru at Harvard Business School and Holger Rathgeber‚ the modern global manager from Frankfurt‚ Germany. The main topic and the author’s purpose in writing the book are to make successful change through the eight step process. The type of the book is management book that can use by people in every level such as manager in one organization‚ high school student‚ executives‚ retirees and others in order to better achieve what
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Carbohydrate Lab Report Introduction Qualitative identification of a substance is of significant importance in chemistry. Physical constants such as melting points have traditionally been used by organic chemistry for identification of unknown compounds. As for inorganic substances‚ the precipitation of a solid‚ results of a flame test‚ or the formation of a colored substance could all be keys to identifying a sample. Chromatography and spectra are amongst the newer techniques
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controls until a stable pattern is observed. Positive slope means that triggering can take place only on an increasing voltage‚ even if the value or level is negative. Selection of the appropriate slope and level can help to trigger the sweep at any point like on the input signal. Use the oscilloscope to measure the peak to peak amplitude of the voltage from the audio oscillator. The amplitude of the voltage is half the peak to peak amplitude.
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(4 points minimum): 1. The concept of kibble‚ J.R. Isidore’s apartment 2. Rick Deckard’s quest for a real animal‚ his deception of his neighbours 3. The androids attempts to escape decommissioning 4. The destruction of the earth due to war. Body Paragraph: Point: Proof: Explanation Summary: Conclusion: Restate Thesis Statement: Restatement of Points of Proof: Concluding Statement: Body Paragraph: Point:
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