Dina Karina Lab performed: 1/22/15 Chem 2203-012 Report due: 1/29/15 TA: Kavitha Akula Experiment 4A: Determination of a Partition Coefficient for Benzoic Acid in Methylene Chloride and Water‚ and Experiment 4B: Solvent Extraction I: Acid-Base Extraction Using the System Benzoic Acid‚ Methylene Chloride‚ and Sodium Bicarbonate Solution Objective The purpose of this experiment is to familiarize oneself with the general procedures determining a partition coefficient
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Lab Assessment Questions & Answers 1. What is the significance of creating Groups and adding Users to Groups? Explain. It is important to put user in groups because it is easier manager there permissions. Instead of assigning permissions to a new user every time someone is hired‚ you would just add them to the groups they need. 2. Given a scenario where there are five (5) database administrators that may periodically need access to a given system. Discuss a concept to better manage these administrators’
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Introduction: This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved. Diffusion is the passage of solute molecules from an area of high concentration to an area of low concentration (Campbell & Reece‚ 2005). An example is ammonia diffusing throughout a room. A solute is one of two components in a chemical solution. The solute is the substance dissolved in the solution. The solvent‚ the other component‚ is any liquid in
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Table of Contents 1. Abstract 2. Introduction 3. Equipment 4. Procedure 5. Discussion/ Schematics 6. Conclusion 7. Reference 8. Appendix Abstract: This experiment is intended to introduce the basic concepts of the operational amplifiers and to help us better understand the relationship between the resistances and the amplifier gain. The main experiment focused on op-amps of which we have two types‚ inverting and non-inverting. With the inverting op-amps there is no current
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Title: Observation of Macroscopic Chemical Changes‚ Alice Kimbrell‚ Chemistry 101-DS01:74589‚ 5/31/2013. Purpose: In this lab‚ I will observe macroscopic changes that occur when mixing together certain chemicals and household cleaners. The mixing of the chemicals provided with each other and with acid/base indicators demonstrates how matter can change‚ and how chemistry can be seen with the naked eye. By mixing household cleaners with an acid/base indicator I hope to demonstrate how these
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Terea Scruggs NT1210 (6 – 11 pm) Due 1/5/14 Labs 1.1 – 1.6‚ 2.4‚ 3.5 Lab 1.1 Reading Binary Exercise 1.1.1 Create a mapping similar to Figure 1- 1 for the decimal number 2931 using either paper and pencil or a Word document. Exercise 1.1.2 Create a mapping similar to Figure 1- 2 for the binary number 110 2 using either paper and pencil or a Word document. Exercise 1.1.3 Create a mapping similar to Figure 1- 2 for the binary number 11 2 using either paper and pencil or a Word document. Exercise
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Week 4 Assignment 4 You are an IT administrator for a company with an existing AD Forest. The company is adding two‚ new branch offices and you have been tasked with designing a replication strategy prior to DC deployment. Branch1 will be connected to the Main Office via a pair of bonded T1 lines and will contain a Call Center with high employee turnover. Branch2 will be in a very remote location and will be connected to the Main Office via a 56K POTS line. The run a replication topology in
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Diffusion of Ammonium hydroxide with red litmus paper Definition of diffusion 1. Diffusion is the process in which particles move from an area of high concentration to an area of low concentration in order to evenly spread out. 2 Diagram. 3. During the diffusion tube experiment I noted that firstly ammonium hydroxide was placed on to a piece of cotton wool. The cotton wool (with the ammonium hydroxide) was then placed in to a diffusion tube containing around 10 pieces of curled red
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reaction by lowering the activation energy. In order to learn about the enzyme and its behaviour‚ this lab practical is conducted to examine the kinetic of the enzyme alkaline phosphatase. As illustration‚ when alkaline phosphatase is added to a substrate called p-Nitrophenyl phosphate (colourless in alkaline solution)‚ a series of reaction takes place and eventually releases a product called p-nitrophenol (yellow in alkaline pH) by enzymatic hydrolysis. As more product formed‚ the solution turns
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process. The data from experimentation provided sufficient results to suggest that the identity of unknown bacterium was the gram-positive spore forming bacteria‚ Bacillus Subtilis. Introduction. One of the main responsibilities of a medical lab is to determine the identity of pathogenic bacteria. It is important to determine the specific type of bacterium causing disease so the physician is able to correctly treat the patients. The structure of bacteria plays a crucial role of what antibiotics
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