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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needs a daily intake of Vitamin C to stay healthy; therefore‚ one should be aware of what fruits he/she should ingest daily or more days to obtain stronger stamina and the abundance of antioxidants in the body to reverse oxidation. Vitamin C or L-ascorbic acid is essential for normal growth of humans and it helps in the repair and reconstruction of body tissues lost over time. It is an antioxidant that blocks the damage caused by free radicals. People who take Vitamin C daily tend to build up a great
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Hepatitis C Virus Hepatitis is an inflammation of the liver‚ which can be caused by several different viruses. It can also be acute or chronic‚ depending on the particular virus and stage of the disease. The different types of hepatitis are hepatitis A (HAV)‚ hepatitis B (HBV)‚ hepatitis B- associated delta (HDV)‚ hepatitis C (HCV) (Porth 2005). These viruses are capable of being transmitted in many different ways but each one will instigate a viral response and inflammation within the liver
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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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Hepatitis C has been referred to as a "Silent Epidemic‚" since it usually progresses slowly over many years. Most people who are infected with hepatitis C are not aware of any noticeable symptoms for as long as one to two decades after they are infected. In fact‚ by the time symptoms appear‚ the virus has probably already begun to damage the liver. If the liver is injured and stops functioning‚ death will always be the outcome (Lieber). Liver failure from chronic hepatitis C is one of the most common
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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 with
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Hepatitis C is a liver disease that is caused by hepatitis C virus. The virus enters into the liver cell‚ use the cell’s genetic to make copies of itself which then affects more cells. Causes Hepatitis C is usually transmitted through blood to blood contacts. It can be transmitted by sharing needles when injecting‚ toothbrushes and razors‚ tattoo or body piercing with equipment that has not been properly sterilized. It can also be sexually transmitted. It is not passed on by everyday contact
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Hepatitis C 12/02009 By: Shuntrice Hannah Abstract Hepatitis C is an infection of the liver caused by the hepatitis C virus (HCV). It is difficult for the human immune system to eliminate the virus from the body‚ and infection with HCV usually becomes chronic. Over decades‚ chronic infection with HCV damages the liver and can cause liver failure in some people. The hepatitis C virus is transmitted mainly by contact with blood or blood products. The Sharing of contaminated needles
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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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Paper I Shree M. & N. Virani Science College BCA III || C++ and Object Oriented Programming Time : 2.5 Hours Marks : 70 Section I Q – 1 Multiple Choice Questions 20 Marks 1) What punctuation is used to signal the beginning and end of code blocks? A) { } B) -> and 5) The wrapping up of data and functions into a single unit is called____________ A) Data Binding B) Encapsulation C) Abstraction D) None 6) Dynamic binding is also known
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