Determination of Ascorbic Acid in Vitamin C Tablets Done by: lora ID #: Date:12/3/2011 Objectives: The aim of this experiment is to determine the weight of ascorbic acid in three vitamin C tablets by titrating it directly with KBrO3‚ then back titration by Na2S2O3. Introduction: Vitamin C is a weak acid and a water soluble substance and it is often called ascorbic acid. It is useful for many biological activities and main functions such as: it is used to provide reducing equivalents for biochemical
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EXPERIMENT: DETERMINATION OF ASCORBIC ACID IN VITAMIN C TABLETS THEORY: Ascorbic acid‚ C6H8O6‚ MM = 176.13‚ can be oxidized to form dehydroascorbic acid by bromine via the following reaction: The bromine or iodine used in the titration is generated by adding an excess amount of KBr or KI to an acidified solution of the sample according to the following reaction: BrO3- + 5 Br- + 6 H+ 3 Br2 + 3 H2O IO3- + 5 I- + 6 H+ 3 I2 + 3 H2O Sodium thiosulfate solutions can be standardized
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Global Travel The Business and Leisure Travel Specialists “INSERT A MOTO HERE” Induction Pack for new employees Chapters Pages Introduction to Travel and Tourism 3 Components of the Travel and Tourism Industry with organisations 4 Factsheets on Organisations: Titanic Belfast Hilton Hotels British Airways What is Tourism and why is it important?
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Introduction to C# .NET and the .NET Platform In this chapter‚ you will • Learn about the .NET Framework • Become familiar with the .NET languages • Discover the environment surrounding C# .NET • Compile your first C# program • Learn the basics of the C# language • Be introduced to object-oriented programming • Learn to use abstraction and encapsulation • Learn to differentiate between instance data and class data If you have been around the programming world for a while‚ you may have
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Research Question: How the amount of vitamin C in fruit juices affects its freshness and till what extent is the information provided on the pack by manufacturers is reliable? Background Information: Hypothesis: -fresh juices have more vitamin C than long-life -juice that is ‘not from concentrate’ is best in terms of vitamin content -if heat destroys vitamin C then heat-treated long-life juices will have lower concentrations -if heat destroys vitamin C then boiled fruit juice will have lower
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CSE-101/102 PROBLEM SOLVING USING COMPUTERS [3 1 0 4] 1. Introduction to Computers Block diagram of a computer‚ Hardware‚ Software-system software and application software‚ Language translators‚ computer memories‚ introduction to operating system‚ Number System - binary‚ decimal‚ octal‚ hexadecimal‚ 1’s complement‚ 2’s complement. 3 hrs 2. Algorithms and Flowcharts Problem Solving steps‚ Definition of Algorithm
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experiment we used 3 different types of orange juices‚ and we also used 0.1% of vitamin C solution. The aim of our experiment was to see how much DCPIP was needed to be added to make the orange juices turn back to the orange colour and the DCPIP to decolourise once the 0.1% of vitamin C was added. DCPIP is a blue dye in its non-reduced form; it becomes colourless when it gains electrons. Vitamin C is an anti – oxidant‚ this is found mainly in fresh fruit and vegetables. The main use of Vitamin C is that it
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Mathematics – I S. R. Rege: D. M. Doke: Latika Bonde (3) Fundamentals of Digital Computing Vishesh Shrivastava (4) Electronics and Communication Technology Vishesh Shrivastava (5) Introduction to C++ Programming Sanjeela Sagar BSc IT SECOND YEAR: SEM III (New Syllabus) (1) Logic and Discrete Mathematics S. R. Rege: Latika Bonde (2) Computer Graphics Ravindra Sangle (3) Advanced SQL Sanjeela Sagar (4) Object Oriented Programming with C++ Sanjeela Sagar (5) Modern Operating Systems Jayalakshmi Srinivas:
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Hepatitis C 12/02009 By: Shuntrice Hannah Abstract Hepatitis C is an infection of the liver caused by the hepatitis C virus (HCV). It is difficult for the human immune system to eliminate the virus from the body‚ and infection with HCV usually becomes chronic. Over decades‚ chronic infection with HCV damages the liver and can cause liver failure in some people. The hepatitis C virus is transmitted mainly by contact with blood or blood products. The Sharing of contaminated needles
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Hepatitis C Virus Hepatitis is an inflammation of the liver‚ which can be caused by several different viruses. It can also be acute or chronic‚ depending on the particular virus and stage of the disease. The different types of hepatitis are hepatitis A (HAV)‚ hepatitis B (HBV)‚ hepatitis B- associated delta (HDV)‚ hepatitis C (HCV) (Porth 2005). These viruses are capable of being transmitted in many different ways but each one will instigate a viral response and inflammation within the liver
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