Vitamin C Molecule Investigation Thomas Philpott Introduction Vitamin C (ascorbic acid) is an essential component of human nutrition‚ as it is an antioxidant that the body requires. Having a deficiency in Vitamin C can lead to scurvy‚ a disease characterized by abnormalities in human bones and teeth. Fruits and vegetables are common sources of Vitamin C‚ notably oranges and citrus fruits. Cooking and the application of heat destroy the vitamin so such fruits must be raw in order to obtain the
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I. Title of experiment: Determination of Vitamin C in Tablets and Juices. II. Introduction: Ascorbic acid or vitamin C is the analyte of this experiment.It is the most appropriate vitamin used to treat colds.It acts as a natural antihistamine that reduces the severity of cold symptoms and it is also used for allergy control.It is an antioxidant and makes headlines when it comes to cancer prevention.Besides‚it helps
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experiment. i Abstract The goal of the analysis is to know the content of ascorbic acid (vitamin C) in the three types of fruit juice‚ A (pineapple juice)‚ B (Orange juice) and C (mango juice). The lower the volume of fruit juice required to decolourise the 2‚6-dichlorophenolindophenol (DCPIP) ‚ the higher the content of vitamin c (ascorbic acid) in the labelled juices‚ A‚ B and C. The method used to determine the content of vitamin C is by using titration method
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Theory: Ascorbic acid is a reductone sugar acid with antioxidant properties‚ i.e.‚ it is capable of inhibiting the oxidation of other molecules. It is one form of vitamin C and is therefore an essential nutrient for human species and certain other animal species. In animals‚ it plays a role in wound-healing and in preventing bleeding from capillaries and in humans‚ it is essential to a healthy diet and to the maintenance of connective tissue. The major food sources of ascorbic acid are green vegetables
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Juice Introduction Complete lack of ascorbic acid (a.k.a Vitamin C) in the diets of humans and other primates leads to a classic nutritional disease‚ scurvy. This disease was widespread in Europe during the fifteenth and sixteenth centuries‚ but it is rare today. Ascorbic acid is widely distributed in nature‚ but it occurs in extremely high concentrations in citrus and green plants such as green peppers and spinach. Ascorbic acid can be synthesized by all plants and animals
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Objective To determine the vitamin C ... Analysis of Commercial Vitamin C Tablets. (Ascorbic acid content in one tablet) - WriteWorkwww.writework.com/essay/analysis-commercial-vitamin-c-tablets... 網頁紀錄 - 更多此站結果Date: 25 Nov‚ 2004 Objective: 1. To standardize sodium thiosulphate for titration use. 2. To find out the concentration of Vitamin C in the tablet. ... Analysis of Commercial Vitamin C Tablets. (Ascorbic acid content in one tablet). (2004‚ December 26). In WriteWork ... Commercial Vitamin
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Lab15 TITLE: Plan and Design OBSERVATION: Cooked vegetables have less Vitamin C (ascorbic acid) than uncooked vegetables. HYPOTHESIS: Heat speeds up the oxidation of vitamin C. AIM: To determine if heat speeds up the oxidation of vitamin C in broccoli APPARATUS AND MATERIALS: 2 broccolis‚ 1% dichlorophenolindophenol (DCIPIP)‚ an electric Masticating juicer‚ burette‚ water ‚ beakers‚ timer/ stopwatch‚ Bunsen burner‚ tripod‚ gauze‚ thermometer‚ 8 conical flasks‚ white tile‚ retort stand‚ funnel
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950620-08-5279 SA2051/1005 Liew Sin Yung 950507-08-5373 SA2051/1011 Yong Yi Xiang 950510-02-5531 SA2051/1018 Teacher Advisor: Pn Kanahambikai Date of Submit of this report: Marks: Abstract Vitamin C or ascorbic acid is necessary for the human body‚ although only in small quantities‚ for acting as an essential supplement to a healthy diet as well as being a highly effective antioxidant‚ acting to lessen stress. People nowadays do not realize that preparing
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Objective: To determine the content of vitamin C in commercial tablets (redox titration and back titration) Principle of method: Vitamin C‚ which is ascorbic acid‚ reacts with iodine rapidly in an acidic medium. C6H8O6 (aq) + I2 (aq) C6H6O6 (aq) + 2H+(aq) + 2I- (aq) Since iodine dissolves slightly in water‚ ascorbic acid cannot be titrated directly by a standard solution of iodine. Therefore‚ back titration technique is employed in this experiment. In an acidic medium‚ potassium
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Oxidation Reduction Titrations: The Indirect Iodimetric Analysis Ascorbic Acid Unknown Number 69 I: Purpose: To determine the percent weight of Ascorbic Acid in unknown sample. This was to be done by the means of an indirect iodimetric analysis. In an iodometric analysis‚ the oxidizing agent can be determined by a different means than titrating directly with standard iodide‚ because a high concentration of I- is needed to form the I3- complex. In this type of analysis‚ excess iodide is added to
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