CHEM 1211 L Principles of Chemistry Lab 16 February 2004 Lab Report 1 Introduction The purpose of this project is to identify an unknown organic acid (X) by conducting various experiments to determine the acid’s unique properties. By determining selected constant properties of the unknown and then comparing these properties to the constant properties of known substances‚ it is possible to identify an unknown substance. The properties used to identify the unknown must be intensive‚ or independent
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Biochemistry is the chemistry of biological systems. The practical component of biochemistry is aimed at developing your interest in and understanding modern biochemical and molecular biological experimentation. The techniques learnt in the biochemistry lab will be applicable to all life sciences. THE OBJECTIVES OF THE BIOCHEMISTRY LABORATORY INCLUDE: (1) Learning the theory behind the techniques and biochemical pathways (2) Learning the physical skills and techniques of modern experimental biochemistry
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SPA Lab 1: Weber’s Law of Just-Noticeable Differences Lisa Robinson University of Central Oklahoma Abstract SPA Lab 1: Weber’s Law of Just-Noticeable Differences Students react to a stimulus very differently based on one’s background and experience. These factors can affect how a person perceives things‚ especially when someone’s senses are being tested. Weber’s Law defines the correlation between concrete and alleged differences in stimulus strength (Coren‚ Ward‚ & Enns‚ 2004). The absolute
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Business Law 1 Mid Term Teshvinder Singh Chopra SEGi University College: American Degree Program 2 July 2010 Accordingly‚ as with the situation‚ Tim has sustained injuries from the incident. The person at fault for Tim ’s condition is surely Danny‚ as he had parked his car illegally‚ which definitely breaking the rules‚ and he as well forgotten to engage the parking brake. This caused the car to roll back and eventually hits an electric wire and the sparks from the ignition of the electric
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Name: ____________________________________ Locker Number: ____________________________ CHEMISTRY 354-355 Experiment 2 SOLUBILITY 1. Part A. Solubility of Solid Compounds. Use your observations to complete the following table‚ rating each system as soluble‚ insoluble‚ or partially soluble. Organic Compound Benzophenone Water Methyl Alcohol Hexane Malonic acid Biphenyl 2. Considering the polarities of the compound and the solvent and the potential for hydrogen bonding‚ answer the
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Experiment 14: Hooke’s Law and Simple Harmonic Motion Purpose (1) To study Hooke’s Law for an elastic spring (2) To study Simple Harmonic Motion of a mass suspended from an elastic spring Apparatus Helical steel spring with supporting stand and scale‚ set of slotted weights with hanger‚ timer‚ laboratory balance. Theory: Hooke’s Law A spring exerts a force which is given by Hooke’s Law: 1 Fs = - kx where x is the amount of displacement from the equilibrium position.
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Brian Neal Professor Belen English Composition 1 November 14‚ 2010 The 1970s Compared to the 1960s The advancement of civil rights and “government for the people” in the twentieth century has been most prominent during the 60’s and 70’s. When you hear about how the women and minorities fought for their right to change the United States into a better nation from one decade to the next‚ it is amazing. During these two decades‚ Americans fought hard to break down the barriers of civil rights
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PH at the UN Alfredo Vidal Ceballos 7/10/2014 Group Support Part 1: Solution Group Name and M. cons. Chem formula Type Experimental pH 1 Deidre Acetic Acid 0.1M HC2H3O2 Weak Acid 3.03 3.03 2 Acetic Acid 1M HC2H3O2 Weak Acid 2.59 2.54 3 Hydrochloric Acid 0.5M HClStrong Base 0.85 0.90 4 Jonah Nitric Acid 0.1M HNO3 Strong Acid 2.14 2.14 5 Sodium Acetate 1M NaC2H3O2 Weak Base 9.42 9.42 6 Potassium Dihydrogen Phosphate 0.1M KH2PO4 Weak Acid 5.47 5.47 7 Andy Potassium Hydrogen Phosphate 0
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Titration with an Indicator 1. Fill the 50-milliliter buret with a 0.25 molar NaOH solution. 2. Record volume. 3. Measure out between 20 milliliters and 40 milliliters of the unknown HCl solution. 4. Record volume. 5. The amount of unknown HCl is then added to the 100-milliliter Erlenmeyer flask. 6. Add two drops of the indicator‚ phenolphthalein‚ to the acid in the flask. 7. Using the slider on the right hand side‚ add NaOH to the HCl in the Erlenmeyer flask (This action is known as titrate).
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Abstract: The previous lab explored the effect of gravity on free fall. It was determined that acceleration is always constant under free fall. However‚ in this lab‚ acceleration was observed under different forces‚ other than just gravity. Therefore‚ depending on how strong the forces being exerted were‚ acceleration differed. It wasn’t constant anymore. Using a glider on a air track and a pulley‚ different masses were attached at the end of the string and the glider was allowed to move on the
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