differences of percentage of vitamin C (ascorbic acid ) between the fresh orange juice and artificial orange juice (Sunkist). Problem statement : Does have different types of fruit juice contain similar amount of vitamin c ? Objevtive: To analyse the concentration and percentage of different food sample by using titration method and state whether the percentage and concentration of vitamin C. Methodology: Theory : DCPIP can also be used as an indicator for Vitamin C. If vitamin C‚ which is a good reducing
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100 Minerals and Mineral Resources The diamond is a rare mineral that is used for many different things in today’s world. Diamonds are composed of carbon know as the chemical symbol C. In a diamond the carbon atoms are covalently bonded to one another. The physical properties of the diamond consist of colors of yellow‚ brown‚ gray‚ white‚ blue‚ black‚ reddish‚ greenish and colorless. The luster is adamantine to waxy. The specific gravity is 3.5‚ which is about the average for a mineral. The
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relatively low on both saturated and mono unsaturated fats. It is popular in margarine and used in both frying and baking. It should only be used when frying on medium temperatures. Sunflower Oil Sunflower Oil is low in saturated fat and high in Vitamin E. Many food manufacturers are recognizing the health benefits of sunflower oil and are using it as the preferred oil in such snack foods as potato chips. It can be used in the home to fry‚ cook‚ and for use in salad dressings. Olive Oil There
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PULLOUT Worksheets SOLUTIONS Science Class Solutions can be downloaded from our Website www.OswaalBooks.com 6 OSWAAL BOOKS “Oswaal House” 1/11‚ Sahitya Kunj‚ M.G. Road‚ AGRA-282002 Ph.: 0562-2857671‚ 2527781‚ Fax : 0562-2854582‚ 2527784 email : contact@oswaalbooks.com‚ website : www.OswaalBooks.com CONTENTS 1. Food Where Does it Come From? Ø 1&2 Worksheets 2. Components of Food 1 3 5 7 10 13 15 17 19 21 24 27 29 32 34 37 - 2 4 6 9 12 14 16 18 20 23 26 28 31 33 36 39
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E20-1 Experiment 20 Consumer Chemistry: Vitamin C in Fruit Juices The Task The goal of this experiment is to determine the concentration of vitamin C in a range of different fruit juices (fresh and preserved) using titration and to rank these sources of vitamin C. Skills At the end of the laboratory session you should be able to: * use a pipette correctly‚ * use a pipette filler safely‚ * manipulate a burette and carry out a quantitative titration properly‚ * weigh a sample
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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
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Southport Minerals‚ Inc – some points to remember • Financial architecture (financing program) can transform a negative NPV project into a positive NPV project value addition done by financial manager. • Southport Indonesia (SI)‚ a wholly-owned subsidiary of Southport Minerals‚ entrusted with a responsibility of mining the copper ore at Firstburg‚ Indonesia. o Initial experiments established that Firstburg mine contained 33 million tons of copper ore with an average copper content of 2.5%
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CHEMISTRY 221 LABORATORY�QUANTITATIVE ANALYSIS 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+
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Vitamin D Vitamin D: Wonder Pill or Overkill? Wouldn’t it be great if one vitamin could build stronger bones and protect against diabetes‚ multiple sclerosis‚ cancer‚ heart disease‚ and depression? Or even help you lose weight? Researchers have high hopes for vitamin D -- which comes from our skin’s reaction to sunlight‚ a few foods‚ and supplements. Learn the facts in the slides ahead … and see who’s at risk for a "D" deficiency. Vitamin D Boosts Bone Health Vitamin D is critical for strong
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experiment 1 Analysis of Commercial Vitamin C Tablets Objective To employ titration technique to determine the content of vitamin C in commercial tablets using volumetric analysis and compare it with the manufacturers’ specifications. Introduction Deficiency of essential antioxidant Vitamin C in human will lead to scurvy. In this experiment‚ the vitamin C content of commercial tablets is determined and then compared with the manufacturers’ specifications. Vitamin C‚ ascorbic acid C6H8O6‚ reacts
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