Vitamin c lab report. We need Vitamin C Lab Report 2022-10-16

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Vitamin C, also known as ascorbic acid, is a water-soluble nutrient that is essential for human health. It is a powerful antioxidant that helps to protect cells from oxidative stress and supports a healthy immune system. Vitamin C is found in a wide range of fruits and vegetables, including oranges, strawberries, and leafy greens, and it can also be taken in supplement form.

In this lab report, we will explore the effects of vitamin C on the body and how it can be measured using a titration procedure. We will also discuss the factors that can affect the accuracy of our measurements and the potential sources of error in this experiment.

To begin our experiment, we will need a sample of vitamin C, which we can obtain by extracting it from a natural source such as oranges or by using a commercial supplement. We will also need a standard solution of hydrochloric acid (HCl) and a solution of iodine in potassium iodide (IKI), which we will use as our titrant.

To perform the titration, we will first weigh out a known mass of our vitamin C sample and dissolve it in a known volume of water. We will then add a small amount of phenolphthalein indicator to the solution, which will turn pink in the presence of an excess of acid.

Next, we will carefully add the HCl solution to the vitamin C solution using a burette, which is a precision measuring device that allows us to add small, incremental amounts of liquid. As we add the HCl, we will watch for the color change in the indicator to occur, which will signal the endpoint of the titration. The volume of HCl that we add will be proportional to the concentration of vitamin C in our sample.

Once we have reached the endpoint of the titration, we will record the volume of HCl that we added and use this value to calculate the concentration of vitamin C in our sample. We can then compare this value to the known concentration of vitamin C in our sample to determine the accuracy of our measurements.

There are several factors that can affect the accuracy of our measurements in this experiment. One potential source of error is the purity of our vitamin C sample. If our sample is not pure, it may contain other substances that could interfere with the titration process. We can minimize this error by using a high-quality, pure sample of vitamin C.

Another potential source of error is the precision of our measuring instruments. If our burette or other measuring devices are not calibrated accurately, our measurements may be off. We can minimize this error by using high-quality, calibrated instruments and following proper measuring techniques.

Finally, we should also consider the potential for human error in this experiment. For example, we may make a mistake while measuring out our sample or adding the HCl solution. To minimize this type of error, it is important to follow proper laboratory techniques and pay close attention to detail.

In conclusion, vitamin C is an important nutrient that plays a vital role in maintaining human health. By performing a titration procedure, we can accurately measure the concentration of vitamin C in a sample and understand the effects of this nutrient on the body. By considering the potential sources of error in this experiment and taking steps to minimize them, we can ensure the accuracy and reliability of our results.

Vitamin C Lab Report

vitamin c lab report

These two solutions were too concentrated, as discovered when the absorbance rate of the solutions was too high compared to the absorbance of the standard solution. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. The juice was combined then strained through cheesecloth. It can strengthen our body to resist against infection. Iron deficiency anemia can also occur due to increased intestinal bleeding and decreased non-heme iron absorption. The test tubes should hold amounts of fruit juice that are more than the amount of fruit juice needed to decolourize 3mL of DCPIP initially. It helps with the maintenance of the connective tissue, which helps to give support and structure for other tissue and organs.

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Vitamin C Lab Report

vitamin c lab report

Preparing I 3 - titrant: 0 g of KI was added to a 100 mL volumetric flask and a small amount of DI water was used to transfer it over. In addition, vitamin C in the diet improves the absorption of non-heme iron, the form of iron present in plant-based foods. Title of Experiment: Vitamin C Lab Report Date of Experiment: 12 February 2014 Names of Lab Group 3 Members and Sections Contributed: Dallas Magee All Sections , Olivia Stewart All Sections , Kenisha Murphy All Sections , and Tim Dziwulski All Sections Lab Section Number: 010 Date of Submission: 26 February 2014 Introduction: A vitamin is an organic compound present in minute amounts in various citrus fruits and vegetables that are essential to maintaining a normal metabolism What Are Vitamins. In aqueous solution, ascorbic acid will react with sodium hydroxide, a base, to produce a salt, sodium ascorbate, and water. Then, 5 mL of deionized water was added to halved the concentration.


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Vitamin C Lab Report by opportunities.alumdev.columbia.edu

vitamin c lab report

Preventive Services Task Force, concluded, however, that there was little evidence to support the use of vitamin supplements to prevent cancer or heart disease. Introduction: Ascorbic Acid vitamin C is a water-soluble vitamin found in many different foods, such as, citrus fruits, tomatoes, and leafy green vegetables. The volumetric flask was inverted with a lid several times to ensure everything was fully mixed together. The mass percent in flask one was 90. Identify specimen with patient name directly on the container and on the outside of the aluminum foil. In one study done on cancer patients using complementary alternative medicines CAMs , 72% did not inform their physician of its use Werneke, et al.

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vitamin C lab report

vitamin c lab report

The amount of vitamin C in the fruit juices will then be recorded to see if an increase in temperature will affect the amount of concentration of vitamin C in fruit juices. It is predicted that, if starch is not present, the solution with iodine remains yellow. DCP was used to determine the amount of vitamin C in the products. If a person is deficient of vitamin C they are prone to develop scurvy, a disease of the collagen metabolism. Impaired collagen production can result in poor wound healing and a weakening of collagenous structures leading to tooth loss, joint pains and bone and connective tissue pathology and blood vessel fragility.


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Vitamin C Limitations Lab Report

vitamin c lab report

Two solubility classes of vitamins are B-complex vitamins and vitamin C. Vitamin C decolourises the blue dye DCPIP dichlorophenolindolphenol. The titration was repeated until two concordant results were obtained. To obtain the unknown acid, the KA value of the acid was determined through experimentation of the reaction a quantitative method. Vitamin C is also fundamental in the function of the immune system due to its involvement with T-cells and white blood cells. However, if starch is present the solution with iodine becomes a blue-black colour.

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Vitamin C Analysis Lab Report 22th Nov

vitamin c lab report

Am J Clin Nutr. Which means that the cancer cells have tested negative for hormone growth factor receptor 2 HER-2 , estrogen receptors ER , and progesterone receptors PR. In 2003 a study by the U. Vitamin C deficiency related reduction in carnitine levels results in fatigue and lethargy. In determination two, the mass of the flask was 52. The volume of NaOH solution required to neutralize the ascorbic acid 0.

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vitamin C lab report

vitamin c lab report

Under physiological conditions, vitamin C serves as a potent antioxidant and has been shown to regenerate other antioxidants, particularly vitamin E. Adults need around 40mg a day of vitamin C. It oxidizes readily and is lost during the cooking and preserving of foods. This does nothing to help the problem of diabetes. Serum ascorbic acid concentrations between 0. The vitamin with 0.

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Vitamin C

vitamin c lab report

This experiment involves the analysis of the vitamin C content in vitamin supplements. Before proceeding with the column chromatography itself, a proper solvent system must be chosen among the different solvents. Atlanta, GA: National Center for Environmental Health, Division of Laboratory Sciences; April 2012. The solution was then poured into a 100 cm 3 beaker and a 50 cm 3 aliquot of this solution was quantitatively transferred, using a 50 cm 3 pipette, to a 250 cm 3 volumetric flask and accurately made up to the mark with distilled water. This is how you will find the Vitamin C content of different juices.

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001805: Vitamin C

vitamin c lab report

© 2021 Laboratory Corporation of America® Holdings and Lexi-Comp Inc. Vitamin C is an essential cofactor for the conversion of dopamine to norepinephrine and in the metabolism of tyrosine and folate and the conversion of cholesterol to bile acids. NB: the juice from the fruits was freshly squeezed during the experiment. Catechol Oxidase Lab Report 642 Words 3 Pages Catechol oxidase is found in cell cytoplasm, their function in plants are to "help protect damaged plants bacterial and fungal disease. The decolourization should have been the same in both the samples.

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