Estimating the Vitamin C Concentration in Fruit Juices: A Redox Titration Prelab Assignment – Please turn your answers in on GaView prior to lab 1. How will you prepare a .02% (m/v) NBS solution? Calculations should be in your notebook before arriving to lab. 2. Provide the structure of vitamin C in its reduced form (ascorbic acid)‚ its ionized form (ascorbate ion- this is at equilibrium with reduced form when dissolved)‚ and its oxidized form (dehydroascorbate). 3. Why do you
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Vitamin K is a fat-soluble vitamin that is required for blood clotting and to prevent hemorrhaging. It also plays a role in bone formation and repair. Deficiencies can occur with inadequate dietary intake‚ malabsorption syndrome‚ chronic liver disease and in patients taking antibiotics. There are several forms of vitamin K‚ including K1‚ K2 and K3. K1 is the form found in plants such as spinach‚ broccoli‚ cabbage‚ and cauliflower. Vegetable oils such as olive and soybean also contain small
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Vitamin E is a fat-soluble vitamin found in vegetable oil‚ nuts‚ leafy green vegetables and whole-wheat flour. Vitamin E is an antitoxin that protects your cells against the potentially damaging byproducts of your body’s metabolism. The daily amount of Vitamin E that should taken by a healthy adult is 15 mg or 22 IU (International Units). Vitamin E does many good things for our body. It promotes normal growth and development in younger individuals. It acts as an anti-blood clotting agent
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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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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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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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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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17 & 18 Worksheets 10. Motion and Measurement of Distances Ø 19 & 20 Worksheets 11. Light‚ Shadows and Reflections Ø 21 & 22 Worksheets 12. Electricity and Circuits Ø 23 & 24 Worksheets 13. Fun with Magnets Ø 25 & 26 Worksheets 14. Water Ø 27 & 28 Worksheets 15. Air Around Us Ø 29 & 30 Worksheets 16. Garbage In‚ Garbage Out Ø 31 & 32 Worksheets (ii) 1 FOOD : WHERE DOES IT COME FROM WORKSHEET-1 SUMMATIVE ASSESSMENT Objective type questions Choose the correct
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NAME-FOSU-MENSAH EMMANUEL ID NUMBER-10372921 VITAMINS Vitamins are organic compounds which are needed in small quantities to sustain life. We get vitamins from food‚ because the human body either does not produce enough of them or none at all. An organic compound contains carbon. When an organism cannot produce enough of an organic chemical compound that it needs in tiny amounts‚ and has to get it from food‚ it is called a vitamin. Sometimes the compound is a vitamin for a human but not for some other
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VITAMIN B1 VERSION 1.0 What is it? Vitamin B1 is a water-soluble vitamin also referred to as thiamine. It is part of the B complex group and essential for normal metabolism‚ cardiovascular and nervous system health. Why you may need vitamin B1 Cataracts - a high dietary intake of thiamine is associated with a reduced risk of cataracts. Mouth ulcers – low blood levels have been found in people with recurrent mouth ulcers. Insect repellent – vitamin B1 is a popular natural insect repellent
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