COURSE SYLLABUS | |Course Number: CHM 1045L |Course Title: General Chemistry I Laboratory | |Prerequisite(s): | | |Co-requisite: CHM 1045 Lecture
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Bottled water * Distilled water Apparatus: * Laboratory oven * Dessicator * Conical flask * Watch glass * Spatula * Glass rod * Burette * Funnel * Volumetric flask * Volumetric pipette Setup: (see diagram under Discussion) Procedure: 1). Weigh accurately approximately 4.5g of pure silver nitrate in powder form. 2). Place the watch glass with the powder in the drying laboratory oven for 30 minutes at a high temperature (60 – 100oC). 3)
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]LABORATORY MANAGEMENT ] EFFECTIVE COMMUNICATION INTRA AND EXTRA LABORATORY ASSIGNMENT 3 DATE: 24 APRIL 2012 Table Of Contents PAGE NUMBER Introduction 3 1. The communication process 4-5 2. Feedback 6 3. Types of Communication based on expression 6-7 4. Types of communication bases on flow 7 5. Internal vs external communication 8 6. What are the barriers to effective communication? 9-11 7. Elements of effective communication
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Date: May 22‚ 2012 Name: Cristhian Valor Organic Laboratory Pre-Lab 1. Main reaction sequence including side reaction products: 2. 3 Sentence Summary of the Experiment: The OH group on the benzene ring in salicyclic acid reacts with acetic anhydride to form an ester functional group. Thus the formation of acetylsalicyclic acid (aspirin) is referred to as an esterification reaction‚ which requires the presence of H+ (H2SO4 in our case). The technique used to purify the aspirin content
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three real-world uses for paper chromatography used in the fields of chemistry and biology. 3. Be sure to include references for any research conducted for this section. Purpose In one or two complete sentences‚ state the purpose of this laboratory investigation. Materials List all of the materials used in this lab. Procedure Include a step-by-step procedure for what you did in the lab‚ written in your own words. Data and Observations * List your original predictions about the
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Objective : Preparation of pure diphenyl via crystallization of crude diphenyl dissolved in ethanol. Structural Formula of Organic Substances Involved : Diphenyl Ethanol Apparatus : Round-bottom flask (100 mL)‚ measuring cylinder (50 mL)‚ conical flask (50 mL)‚ filter flask‚ beaker (100 mL)‚ stemless glass funnel‚ Hirsch funnel‚ capillary tube‚ long glass tube‚ watch glass‚ glass vial‚ water condenser‚ retort stand‚ retort clamps‚ spatula‚ cork stand‚ fluted filter paper‚ filter paper
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1 Pre-Laboratory Questions 1) What are common patterns of distribution related to rock pocket mice coat color? The patterns of distribution related to rock pocket mice coat color is primarily focused on the genetic variation regarding the fur color of the mice. The population of mice that possess a lighter fur color typically live in regions that contain light coloured rocks within the environment. Still‚ mice that have a darkened color fur will most often be found in areas in which the environment
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operation Laboratory rules 1) Prepare a lesson carnestly before the experiment. Clarify the related basic principle‚ sequence of the operation‚ and safety measures in the experiment. 2) Put on the working clothes before entering the laboratory. Record the experimental phenomena and data. 3) Keep the floor neat. Don’t throw anything into the water trough so as to avoid stops up. 4) After every experiment‚ the students being on duty shall take responsibility for cleaning up the laboratory‚ inspecing
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Lab 1 “Laboratory Techniques and Measurements” A. Water boils at 100C at sea level. If the water in this experiment did not boil at 100 C‚ what could be the reason? * We’re not at sea level; the pressure could be lower or higher. B. While heating two different samples of water at sea level‚ one boils at 102C and one boils at 99.2C. Calculate the percent error for each sample from the theoretical 100C. (show your work) * 1st Sample: 1.96% error * 2nd Sample: 0.81% error
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Laboratory Measurements and Density Objectives: A. To determine the density of Aluminum (lit. value = 2.7 g/cm3) by determining its mass‚ and measuring its volume by dimensional analysis and water displacement. We will also examine the % error in our determination based on the literature value. B. To determine the mass and diameter of select ball bearing. Plot graphs of mass vs. diameter‚ mass vs. surface area‚ and mass vs. volume. Afterwards use slop of the mass vs. volume graph to determine density
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