we measured the temperature of the 10 milliliters of Solution 2. Then we dropped a ball of steel wool into the test tube and measured the temperature again. We stored the test tubes on the test tube rack to observe the next day. A chemical reaction did occur in the lab. There were a color change and an odor change that was observed on Day 2 of the lab. On Day 1‚ the liquid was clear and the smell was very strong. On Day 2 of the lab‚ most of the liquid was gone but the color was a muddy color and
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Title: Investigate the reactions of Group-2 elements. Objective: To be able to describe the redox reactions of Group-2 elements with oxygen and water To be able to identify trends of reactivity down the Group-2 Equipment required: 2 x250 cm3 beaker Funnel 2x boiling tubes Crucible tongs Calcium granules Magnesium ribbon Magnesium powder Spatula Universal Indicator Thermal mat Filter paper Safety: Wear eye protection. Magnesium and calcium are highly flammable. Calcium hydroxide
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Part I: Pre-Lab Diffusion/Osmosis Pre-Lab Introduction: Dialysis tubing allows molecules to diffuse through microscopic pores in the tubing. Molecules that are smaller than the pores can diffuse through the dialysis membrane along the concentration gradients. Molecules that are larger than the pore size are prevented from crossing the dialysis membrane. Answer questions in complete sentences. For problems‚ show equations and work with units and appropriate significant figures. Part IA: In the following
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Introduction/Lab Description This lab is meant as an introduction to properly instructing individual stretches. (40 points) Objectives 1. Identify the joint movements and muscles being stretched during a variety of stretches. 2. Describe and demonstrate proper technique (e.g. range of motion‚ body positioning‚) for a variety of generally safe and effective stretches to enhance flexibility. 3. Demonstrate the ability to teach common stretches using proper directions‚ cueing‚ and
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Statistics – Lab Week 2 Name: Math221 Creating Graphs 1. Create a Pie Chart for the variable Car - 2. Create a histogram for the variable Height – 3. Create a stem and leaf chart for the variable Money – Stem-and-Leaf Display: Money Stem-and-leaf of Money N = 20 Leaf Unit = 1.0 9 0 124456667 (3) 1 249 8 2 128 5 3 03 3 4 27 1 5 2 Calculating Descriptive Statistics 4. Calculate descriptive
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In this lab 8 total substances were tested to find out whether they are a Protein or a Starch. It is my belief that only 1 or two of each of the substances in test 1( proteins) and test 2 (starch) will test positive for either protein or starch. For this lab the following materials were needed to complete the experiments in test 1 for proteins: Di water‚ ev milk‚ 50% egg solution‚ 1% sucrose‚ 4 test tubes‚ 1 test tube rate‚ safety glasses‚ pipets and the reagent solution. For test 2 for starches
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Daniel Bergey Lab 2: Proteins and Starches Purpose The purpose of lab 2 and both tests with proteins and starches is to determine which substance contains either protein or starch. Hypothesis Proteins: I predict that any substance I test that derives from a living organism is will test positive proteins. Any substance that isn’t from a living organism more than likely will test negative for proteins. Starches: I predict that any substance that contains any level of glucose will test positive
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Heats of Reaction Lab Report Purpose: To measure the heats of reaction for three related exothermic reactions and to verify Hess’s Law of Heat Summation. NaOH(s) ( Na+(aq) + OH-(aq) ΔH = -10.6kcal/mol NaOH(s) + H+(aq) + Cl-(aq) ( H2O + Na+(aq) + Cl-(aq) ΔH = -23.9kcal/mol Na+(aq) + OH-(aq) + H+(aq) + Cl-(aq) ( H2O + Na+(aq) + Cl-(aq) ΔH = -13.3kcal/mol Background: Energy changes occur in all chemical reactions; energy is either absorbed or released. If energy is released in
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Lab 2.1 Exercise 2.1.1 All these elements are necessary because each allows the other to function and do its job. Without Media the signal cannot transmit. Without Interface the computer cannot access the Media. Without the signal the electricity or copper wires cannot transmit information. Without Pattern there would be no established format for the signals. And timing lets the devices know when the pattern starts and ends. Exercise 2.1.2 Almost all networks in use today are based in some fashion
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PDC session Col. (Prof.) A.K. Rajpal AKR 1 Mid-Term Exam 11-14 August‚ 2014 End-Term Exam 26 Sept.-1 Oct.‚ 2014 Holidays (29th July‚ 2014) (15th August‚ 2014) (18th August‚ 2014) Term Break 2-6 October‚ 2014 Term V Commences on 7th October‚ 2014 K.P. Sharma Dr. Shikha Bhatia Dr. Deepak Singh Manager (Program Office) Program Director PGDM (2014-16) Asstt. Dean (Academics) (Weekly) TIME TABLE – PGDM (GENERAL)
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