Chemicals Vitamin C tablet‚ (1) standard 0.0110 M potassium iodate (KIO3) solution‚ (100 cm3) standard 0.060 M sodium thiosulphate solution‚ (Na2S2O3‚ 160 cm3) 1 M potassium iodide solution‚ (KI‚ 20 cm3) 0.5 M H2SO4‚ (150 cm3) freshly prepared starch solution. Apparatus Titration apparatus Principle In this experiment you are required to determine the vitamin C content of a commercial tablet and compare this with the manufacturers specification. Vitamin C is ascorbic acid‚ which is rapidly and quantitatively
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Analysis of commercial vitamin C tablets Objective To determine the vitamin C content in commercial vitamin C tablets by titration between vitamin C (ascorbic acid) & iodine solution. Hence‚ compare this data with the manufacturer ’s specification. Principle In this analysis‚ certain amount of iodine solution‚ which is known in excess‚ is added to acidified ascorbic acid solution. Brown iodine can be easily reduced by acidified ascorbic acid to form colourless iodide ion:
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Analysis of Commercial Vitamin C Tablets Aim: To employ iodometric titration to determine the content of vitamin C in commercial tablets using volumetric analysis and compares it with the manufacturersÂ’ specifications. Introduction Vitamin C is an essential substance for maintaining good health and it is proved to be the agent which prevents scurvy. Most animals can synthesize their own vitamin C‚ but some‚ such as human cannot. Owing to the increasing concern for oneÂ’s health
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The Effect of Vitamin C on Plant Growth Aim: To determine the effect of salt/ sugar/ caffeine/ vitamin C on seed germination. Hypothesis: The plant will grow slowly or die due to the Vitamin C. Equipment: * 2 cups * 2 measuring cups * Water * Vitamin C/ orange Juice * Soil * 4 seed (2 for each cup) * A ruler Method: 1. Pour ¾ of soil into each cup 2. Plant 2 seeds into each cup. Put it about half way down the soil 3. Mix 1mL of orange juice with 5mL
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Biology SL Internal Assessment What is the effect of heat on vitamin C concentrated in lemon juice? Introduction: “Vitamins are complex organic substances that are needed in very small amounts for many of the essential processes carried out in the body.” 1It is estimated and supported scientifically that only a few mg are filling the daily recommendation‚ which is essential for a healthy living. As most of vitamins cannot be produced by our bodies‚ we need to obtain them from
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Laboratory exercise 3 : Quantitative analysis of vitamin C contained in a fruit juice Aim: To investigate the amount of vitamin C found in all kinds of fruit juice Introduction : Vitamin C is an antioxidant‚ along with vitamin E‚ beta-carotene‚ and many other plant-based nutrients. Antioxidants block some of the damage caused by free radicals‚ substances that damage DNA. The build-up of free radicals over time may contribute to the aging process and the development of health conditions such as
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ANALYSIS OF VITAMIN C IN COMMERCIAL FRUIT JUICES BY IODOMETRIC TITRATION. SHAMSUL AZRIN BIN MD. KANAFE Final Year Project Report Submitted in Partial Fulfilment of the Requirement for the Degree of Bachelor of Science (Hons.) Chemistry in the Faculty of Applied Sciences‚ Universiti Teknologi MARA. APRIL 2009 This Final Year Project Report entitled “ANALYSIS OF VITAMIN C IN COMMERCIAL FRUIT JUICES BY IODOMETRIC TITRATION” was submitted by Shamsul Azrin Bin Md. Kanafe‚ in partial
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abnormally low body weight is often masked by water retention‚ which makes the face moon-shaped and the belly swollen. Deficiency diseases are usually associated with lack of vitamins or minerals. The effects of a vitamin or mineral deficiency on the body depend on the function of the particular nutrient lacking. For example‚ vitamin A is
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provides the most vitamin C? In my investigation I plan to find out how much vitamin C there is in orange juice‚ pineapple juice and tropical juice and then compare my results to find out which juice has the most vitamin C. The independent variable is the type of juice and the dependant variable is the volume of fruit juice needed to decolourise 1cm3 Of 1% DCPIP solution. DCPIP solution can be used to measure the amount of vitamin C in each juice as an antioxidant (like vitamin c) reduces the blue
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To compare the concentration of vitamin C in different brands of orange juice. Juice sample provided: 0.1% vitamin C solution‚ fresh orange juice‚ You C 1000 orange water. Aim of investigation: To compare and verify the amount of vitamin C in Mr. Juicy and You C 1000 orange juice. Introduction: Problem: To compare the concentration of vitamin C Hypothesis: Concentration of vitamin C in Mr. Juicy is about 0.02 % Concentration of vitamin C in You C 1000 orange water is about 0.1%
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