Name: Wai Kwan Ng, Jason Student number: 100814 Chemistry B lab report- The determination of the mass of Ascorbic Acid (Vitamin C) in Commercial Vitamin C tablets Date of experiment: 26/2/2014 Title: The determination of the mass of Ascorbic Acid in commercial Vitamin C tablets. Aims: To determine the molarity of cerium(IV) sulphate solution and the mass of ascorbic acid (Vitamin C) in tablets. Introduction Ascorbic acid is an important organic compound in nature. The chemical formula of ascorbic acid is C6H8O6 and its structure is shown in figure 1 (XIANG, et. al., accessed in 2014). It is a white solid if it is pure and a mildly acidic solution will be given out when ascorbic acid is dissolved in water (ZHANG, 2013). Fig.1: Structure of ascorbic acid Ascorbic acid is also called vitamin C and its antioxidant and metabolic properties are essential to both plants and animals. For instances, most of the deficiency-related diseases, like scurvy, can be healed by using ascorbic acid. Moreover, vitamin C is useful in improving human immunity system (ZHANG, 2013). One way that ascorbic acid functions to protect human health is that it can act as an antioxidant to react with the oxidants of the reactive oxygen species (ASARD, et.al., 2004). Reactive oxygen species refers to the reactive molecules containing oxygen and one of the examples is the hydroxyl radical (ZHANG, 2013). This kind of radical can cause damage to human health by interacting with proteins, lipids and nucleic acid in human’s cell (ASARD, et.al., 2004). Since ascorbic acid can react with these radicals, the resulting molecules will become stable and will not harm human’s cell anymore (ASARD, et.al., 2004). However, as human cannot synthesize vitamin C by themselves, t... ... middle of paper ... ...d solution of ascorbic acid. As a result, the first three titres were used even though the first one was a rough try. Conclusion To conclude, the molarity of cerium(IV) sulphate solution was found as 0.0478M by part 1 of the experiment. Moreover, one of the tablets had 63.52mg vitamin C and another tablet contained 61.42mg of vitamin C. Reference 1. ASARD H., et.al., 2004. Vitamin C: Its Functions and Biochemistry in Animals and Plants. Oxon: Garland Science/BIOS Scientific Publishers. 2. KENKEL J., 2014. Analytical Chemistry for Technicians, Fourth Edition. New York: CRC Press. 3. RAMSDEN E.N., 2000. A-Level Chemistry, Fourth Edition. Cheltenham: Nelson Thornes limited. 4. XIANG C., et. al., accessed in 2014. http://cnx.org/content/m38343/latest. Webpage. 5. ZHANG Y., 2013. Ascorbic Acid in Plants: Biosynthesis, Regulation and Enhancement. London: Springer.
A: The reaction with water and vinegar was the most useful in this experiment. The physical properties were very self explanatory because the texture of the powders was all different expect icing sugar and cornstarch. Also the Ph levels were very similar of six and seven for corn starch and icing sugar respectively. d) Q: How confident do you feel about your identification of the
The name of the Vitamin water is power-C. The vitamin water is red. This color red is a warm and positive color associated with our most physical
(13) Pazirandeh S. Overview of vitamin K. In: UpToDate, Post TW (Ed), UpToDate, Waltham, MA. (Accessed 27th April 2014)
Therefore, extensive research was carried on for the maximum protection of vitamin C maintaining the stability, pH sensitivity and permeation to the skin.
... C in the diet. Scurvy is recognized by moderate to severe weakness and spongy bleeding gums. (Greenwood 1937) Ascorbic acid, also known as vitamin C, is found in a number of foods; many of which a typical hunter—gatherer would have eaten on a daily basis. Potatoes and other tubers, green vegetables and citrus fruits are among a few of the foods that supplement enough vitamin C to prevent scurvy.
Vitamin C, also known as Ascorbic Acid, has the structural formula C6H8O6. Vitamin C is an essential nutrient believed to have very important benefits to the human body and it enables the body to make efficient use of carbohydrates, fats, and protein. It is needed by the body to repair bones, teeth, and cartilage; heal wounds and scars; help the body absorb iron from certain substances, and promote a healthy immune system. Vitamin C is also needed to form collagen, which is a protein used to make skin tissue, blood vessels, ligaments, and tendons. Vitamin C is an antioxidant, meaning it protects the body’s cells against oxidation and the destructive effects of free radicals within the body. It is also believed that vitamin C helps to prevent
Vitamin C in the body acts as an antioxidant. Vitamin C loses electrons easily, a characteristic that allows it to perform as an antioxidant. In the body, antioxidants defend against free radicals. A free radical is a molecule with one or more unpaired electrons, which makes it unstable and highly reactive. By donating an electron or two, antioxidants neutralize free radicals and protect other substances from their damage. Figure 1 illustrates how vitamin C can give up electrons to stop free radical damage and then accept them again to become reactivated. This recycling of vitamin C is key to limiting losses and maintaining a reserve of
Vitamin C is a necessary vitamin for the body to carry out its functions properly. It is also known as ascorbic acid. It is a water-soluble nutrient that is found in some foods. It acts as an antioxidant in the body which helps to protect cells from the damage caused by free radicals, which are formed when our bodies convert the food we eat into energy. The body needs vitamin C to make collagen which is the protein required in wounds, healing. Moreover, vitamin C promotes the absorption of iron from fruits and vegetables and helps in promoting the immune system. Vitamin C is also important to protect our body from cardiovascular disease, prenatal health problems, eye disease, and skin wrinkling. We can obtain vitamin C from food and other sources.
Fill a microburet with DCIP solution. Using a pipet, transfer 1.0 ml of the ascorbic acid
PQQ is not currently classified as a vitamin, although it has been shown to be an important nutrient in mammals. Free PQQ is widely found in most dietary sources; natural sources as well as man-made products. The highest naturally occurring concentrations are found in parsley (34.2 ng/g), and f...
One example is the idea that vitamin C’s diffusion through the body may be slowed down when Tryptophan is added. This could mean that a pill or vitamin packet could be created containing vitamin C, Tryptophan, and other beneficial amino acids for people to use. As Linus Pauling believed, vitamin C has a number of positive effects on the human body, for example how it is known to help with muscle repair. An increase in bioavailability could assist athletes such as body builders or runners with muscle repair and therefore increase their performance. The supplement of these amino acids might be able to be used by people who are injured; the vitamin C and amino acids could help the body restore damaged tissue faster and with less scarring. With the finding of sodium citrate and vitamin C’s chemical bond, the potential skyrockets. Vitamin C could be added to sodium citrate, a common and perhaps more healthy salt replacement (Modernist Pantry, nd). Assuming that vitamin C boosts the immune system, the sodium citrate mixture could be used as a healthier option in food production to provide an inexpensive and effective way of increasing the health of citizens around the world. The increased absorption of vitamin C has a lot of potential to help those in need. The known benefits of vitamin C warrant further study and experimentation but the unknown possibilities, such as helping prevent cancer as Linus Pauling
Vitamin C also known as ascorbic acid is needed for growth and maintenance of healthy tissues, especially skin, blood vessels, bones, gums, teeth. Vitamin C aids in resistance against infection and healing of wounds. It also helps the body absorb iron from food. Vitamin C can be found in green vegetables, potatoes, tomatoes and citrus fruits such as oranges and lemon. A lack of vitamin C can cause scurvy, iron deficiency and poor wound healing. A healthy diet should include a high amount of vitamin C because the human body cannot produce its own vitamin C.
The chemical name for vitamin C is ascorbic acid. Its molecular structure is fairly simple to recognize, C6H8O6. There are many positive properties of vitamin C. It is a water-soluble vitamin, so it is easily ingested into the bloodstream. It is also “virtually nontoxic” (3). When vitamin C is ingested, the body only uses what is needed. The rest is carried out of the body through urine. An experiment was carried out using guinea pigs to test the toxicity of the vitamin. “Guinea pigs that were given one half of one percent of their body weight of ascorbic acid per day for a period of days showed no symptoms of toxicity” (3).
Nowadays, healthy is the number one individual and also governmental concern. As the saying goes, ‘an apple a day keeps the doctor away’ is clearly show that eat nutritious food such as fruits and vegetables can provide a good health and can prevent us from harmful diseases. As we know, vegetables provided various types of vitamins needed by the body for instance pumpkin contains a lot of vitamin A, tomatoes contain vitamin C and spinach contains folate. Pumpkin is one of nature’s riches sources of alpha-carotene, a carotenoid that converts to retinol which is a form of vitamin A. The amount of vitamin A that contain in the pumpkin per serving (116g) is 171%, vitamin C 17%, calcium 2% and iron 5% (Pumpkin raw, 2014). There are a lot of benefits when consuming vitamin A, for example this vitamin promotes healthy vision, bone growth, reproduction and help boosts our immune system. Apart from that, a diet high in vitamin A may lower the risk of many types of cancer. Besides, some vegetables also contain a lot of vitamin C such as tomatoes, bell peppers and broccoli. The function of vitamin C is it helps heal the wounds and keep away the body from bacterial infection. According to researchers at Albert Einstein College of Medicine of Yeshiva University, they discovered that vitamin C can kill drug-resistant tuberculosis (TB) bacteria (Libov, 2013, para. 3). Besides that, vitamin C
Vitamin E in all its forms, functions predominantly as an antioxidant by protecting cells from free radicals in the body. Vitamin E works as an antioxidant by donating a hydrogen atom from a hydroxyl group to a free radical within the body. Vitamin E also plays a role in immune system function and protects cell membranes and regulation of gene expression. Vitamin E has been studied to uncover other medical usages, including prevention or treatment of many health conditions [1].