this lab‚ sulfamic acid (a weak acid which contains one acidic hydrogen) will be used: H2NSO2OH(aq) + NaOH(aq) ( NaOSO2NH2(aq) + H2O(l) (Net Equation: H+(aq) + OH-(aq) ( H2O(l)) □ Titration is a process of neutralization □ Titration is commonly used to determine the concentration of an acid or base in a solution. □ This process involves a solution of known concentration (the titrant or standard solution) delivered from a buret into the unknown solution
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4 Titration Curve of an Amino Acid pH Simple amino acid Acidic amino acid Basic amino acid 7 OH- equivalents Objectives: A) To determine the titration curve for an amino acid and B) to use this curve to estimate the pKa values of the ionizable groups of the amino acid and the amino acid’s pI. Introduction: A titration curve of an amino acid is a plot of the pH of a weak acid against the degree of neutralization of the acid by standard (strong) base. Consider the ionization
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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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Acid-Base Titration Background Information A titration is a controlled addition of one substance into another substance. In an acid-base titration‚ the experimenter will add a base of known concentration to an acid of unknown concentration (or vice-versa). The goal of the titration is usually to use the substance of known concentration to determine the concentration of the other substance. In order to run a titration‚ the following materials are needed: • A buret filled with the base (or acid) of
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Brand Name & Punch Line INGREDIENTS Vitamin A Vitamin D3 Thiamin Mononitrate Riboflavin I.P Pyridoxine Hcl IP Mecobalamin Niacinamide Calcium Pantothenate IP (vitamin B5) vitamin C (Ascorbic acid) Vitamin E Biotin Magnesium Copper Zinc Molybdenum Selenium Chromium Lutein (10%) Folic acid Zeaxanthin QTY. 5000 IU 400 IU 5 MG 5 MG 1.5 MG 500 MCG 50 MG 10 MG 75 MG 25 mg 150 MCG 30 mg 0.55 mg 21 mg 11 mcg 37 mcg 32 mcg 6 mg 1.5 mg 300 mcg Composition PACK SIZE SALES PACK THERAPY PACK CASE
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VITAMINS‚ THEIR TYPES AND USES Vitamins are vital nutrients‚ indispensable to perform various tasks within the human body in order to promote optimal health and prevent various diseases. How do Vitamins work? Although required in minimal quantities these vitamins cannot be synthesised by the human body. Hence‚ they rely on easily available animal and plant sources for replenishment. These vitamins in conjunction with other nutrients help break down proteins‚ thereby stabilising metabolism‚ enabling
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1. Vitamins are good for everyone’s health. Discuss A vitamin is an organic compound required by an organism as a vital nutrient in limited amounts. An organic chemical compound is called a vitamin when it cannot be produced in sufficient quantities by an organism‚ and must be obtained from the diet. (Vitamin) Some of the most important vitamins and most commonly used which are good for everyone’s health are Vitamin A‚ Vitamin B1‚ Vitamin B2‚ Vitamin B6‚ Vitamin C‚ Vitamin E and Niacin (B3). Vitamin
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isn’t added the solution will quickly start to turn yellow due to formation of MnO2. If this happens anyway‚ add some more sulphuric acid to reverse the process. The solution should be clear with a slight green tinge. Chapter 15 – Volumetric analysis (Redox titrations) To prepare a standard solution of ammonium iron sulphate and use this solution to standardise a solution of potassium permanganate. Potassium permanganate (KMnO 4 ) is a powerful oxidizing agent and is a deep purple colour. It cannot
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Vitamin A Overview Vitamin A is a vitamin. It can be found in many fruits‚ vegetables‚ eggs‚ whole milk‚ butter‚ fortified margarine‚ meat‚ and oily saltwater fish. It can also be made in a laboratory. Uses treatment and prevention of vitamin A deficiency. Vitamin A deficiency can occur in people with protein deficiency‚ diabetes‚ over-active thyroid‚ fever‚ liver disease‚ cystic fibrosis‚ or an inherited disorder called abetalipoproteinemia. Diseases i. Night Blindness: In the early stages
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Journal 2011‚ 10:46 http://www.nutritionj.com/content/10/1/46 RESEARCH Open Access Misleading measures in Vitamin D analysis: A novel LC-MS/MS assay to account for epimers and isobars Iltaf Shah1‚ Ricky James1‚ James Barker2‚ Andrea Petroczi1 and Declan P Naughton1* Abstract Background: Recently‚ the accuracies of many commercially available immunoassays for Vitamin D have been questioned. Liquid chromatography tandem mass spectrometry (LC- MS/MS) has been shown to facilitate accurate
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