Determination of Vitamin C by an Iodometric Titration Purpose: The goal of this lab is to determine the concentration of vitamin C in juices and Real Lemon. A redox titration‚ involving an iodometric method‚ will be used to do the analysis. The samples will be classified by their Vitamin C content. Introduction: Although most mammals can synthesize vitamin C‚ or ascorbic acid (C6H8O6)‚ from sugars‚ man must ingest considerable quantities of this substance. The National Academy of Sciences recommends
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principal at the end of each year. Bond B has a maturity of two years and interest promises an annual rate of 8.85% (4.425% every six months). Compounding occurs semiannually; accrued interest is added to the bond’s principal every six months. Bond C matures in two years and promises an annual interest rate of 8.65% (.0237% per day). Compounding occurs daily; accrued interest is added to the bond’s principal at the end of every day (assume 365 days/year). A. Calculate the annual yield-to-maturity
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Investigating Vitamin C Background Vitamin C is found in green vegetables‚ fruits‚ and potatoes. It is essential for a healthy diet. The chemical name for vitamin C is ascorbic acid. Ascorbic acid is a good reducing agent and therefore it is easily oxidised. Methods for the detection of vitamin C involve titrating it against a solution of an oxidising agent. Where to start There are several oxidising agents that can be used and a commonly used one is 2‚6-dichlorophenol-indophenol or DCPIP
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Hepatitis C is an infectious disease caused by the hepatitis C virus (HCV) that primarily affects the liver. There are different types of hepatitis viruses‚ including hepatitis A‚ B‚ D‚ and E. Among the different viruses‚ hepatitis C is the most serious because it can be chronic and cause severe liver damage. During the initial infection people often have mild or no symptoms. Occasionally a fever‚ dark urine‚ abdominal pain‚ and yellow tinged skin is there. Early on chronic infection typically has
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Working Capital Financing Preferences: The Case of Mauritian Manufacturing SMEs Kesseven Padachi*; C. Howorth1 and M. S. Narasimhan2 *School of Business‚ Management and Finance University of Technology‚ Mauritius La Tour Koenig‚ Pointe – aux – Sables‚ Mauritius kpadachi@utm.intnet.mu ABSTRACT This paper investigates the approach to working capital finance among the small to medium sized Mauritian manufacturing firms‚ using a survey based approach and case studies. Finance has been cited as the
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CÁC ĐỀ THI IELTS NĂM 2014: Ngày 09/01/2014: Writing Task 2: The best way for governments to solve the problem of traffic congestion is providing free public transport in 24 hours per day‚ and seven days a week. To what extent do you agree or disagree? Ngày 18/1/2014: Writing Task 1: One line graph and one column about the average price ticket and the average percentage of tickets sale of a theatre Writing Task 2: Many students find it difficult to concentrate or pay attention at school. What are
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IB Biology Lab – Vitamin C content of food Aim: To compare the vitamin C content of different fruits using the decolourisation of DCPIP from blue to clear as the indicator. • You first need to estimate the volume of a known concentration of vitamin C solution required to decolourise 2 cm3 of DCPIP solution. • Then you need to determine the volume of fruit juice that decolourises 2 cm3 of DCPIP solution. This gives an estimate of the concentration of vitamin C in fruit juice. • This
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UNDERSTANDING THE CASE PROCESS INTRODUCTION The purpose of this section is to help you to understand what a case is and how you‚ as a student of business‚ can more effectively prepare your answers and benefit from a case discussion. The material covered in this section includes: 1. Understanding what a case is. 2. Reading a case effectively. 3. Analysing and preparing for a case discussion. 4. Reporting your case findings. 5. Discussing the case. 1. Understanding what a
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lives. There have been studies that show that people who are abused by their peers are at risk for serious problems (Murillo C.‚ 2008). These problems include low self esteem‚ stress‚ depression or anxiety and even in the worst cases‚ suicide. Sloane Molloy‚ a guidance counselor at Glynn Middle School‚ states “It can escalate to violence when left unchecked” (Murillo C.‚ 2008). Besides the students the school is also affected by bullying. Many schools are fighting back against bullying. There
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I/O Library Header Files: There are following header files important to C++ programs: The standard output stream (cout): The predefined object cout is an instance of ostream class. The cout object is said to be "connected to" the standard output device‚ which usually is the display screen. The cout is used in conjunction with the stream insertion operator‚ which is written as << which are two less than signs as shown in the following example. -------------------------------------------------
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