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
added, the concentration of ascorbic acid would have been 4.27g/L which is closer to the actual value (.360g/L). If an average of 15.00mL pf NaOH were added, the concentration
Content of Apple 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, with
Heating Foods and Its Effect on Amoutn of Vitamin C Aim The aim of the experiment is to investigate how much Vitamin C / Ascorbic Acid is destroyed when Orange juice is heated at 80°C for different lengths of time. Introduction ============ Certain foods contain high concentrations of Vitamin C. When these foods are heated their ascorbic acid content decreases, this is a non-reversible reaction. ================================================================== During
Vitamin C Chemistry L-ascorbic acid with empirical formula of (C6H8O6) is the trivial name of Vitamin C. It is described chemically as 2-oxo-L-threo-hexono-1,4-lactone-2,3-enediol (Naidu , 2003). L-ascorbic is a water soluble 6-carbon α-ketolactone with two enolic hydrogen atoms (Packer, 2002), while Ascorbyl palmitate which is the synthetic form is lipid soluble. Ascorbic acid is sensitive to air, light, heat and easily destroyed by prolonged storage and over processing of food (Naidu, 2003)
amla. Wong C. (2014) stated that amla oil helps in strengthen the hair follicles and treating dry and itchy scalp due to its high content of essential fatty acids, vitamin C, flavonoids, polyphenols and other types of minerals. Besides that, the presence of vitamin C in amla gives huge benefits in medical aspects. Vitamin C is known as Ascorbic Acid, ascorbate, Absorbicap, Ascoltin, Cebione Cevalin and Hybrin was discovered in 1928 and most widely used of all vitamins. It is ... ... middle of paper
content of a food substance: Solubility: Vitamin C (ascorbic acid) occurs naturally as organic compounds. They may appear as white solids or impurely as yellowish samples. They dissolve well in water to form mildly acid solutions. Making them water-soluble. Effect of temperature:- High temperatures: Excess temperature completely destroys and denatures vitamin C by increasing the oxidation rate. Extreme temperatures kill the enzyme ascorbic acid oxidase which is found mainly in fruit and vegetables
depressive illness, which, as I pointed out in Infantile Autism, do appear to be genetically related to autism. If vitamin C is used in large amounts, most experts suggest that buffered vitamin C (sodium ascorbate) should be used rather than ascorbic acid, since the acid form may be too acidic in multi-gram doses. Works Cited www.vitacost.com www.mall-net.com www.Autismstudy.com www.webhealth.com
Contents No Items Pages 1 Contents 1 2 Introduction 2 3 Toxicants formed during food processing 3~9 3.1 Acrylamide 3 3.2 Polycyclic Aromatic Hydrocarbons 4~5 3.3 Nitrosamine 5~6 3.4 Benzene 7 3.5 Chorinated compounds 8 3.6 Amino acid Pyrolysates 9 4 Conclusion 10 5 References 11 Introduction For most foods, the faster it spoils, the healthier it is. However, in the globalisation and rapid invention of technologies plus the shifting eating habit of mankind, we need our food to last for
of mixing various levels of acids and bases to see which combination would have the most explosive reaction, and measure the resulting pH levels. I did this by testing an assortment of different pH levels of acids and bases, mixing them together and measuring the results. Most of the experiments resulted in a pH neutral solution, except for the Sulfuric Acid and the Sodium Hydroxide. By far, the Sulfuric Acid was the most explosive, followed by the Citric and Acetic acid. Introduction The project
An acid is a substance that produces H+ to form a solution that has a pH <7. It turns litmus paper red. It reacts with bases to form a salt and water. A weak acid is an acid that dissociates incompletely, releasing only some of its protons(H+). A strong acid is an acid that fully dissociates incompletely, releasing only some of its protons(H+). A base is a substance that can accept (H+) and releases(OH-) to form a solution that has a pH>7. It turns litmus paper blue. It reacts with acids to form
their life cycle, being rich particularly in protein (Wakhle, 1981). Once bee pollen was defined in legislation as food, the nutritional value of this product became important. It contents high concentration of reducing sugars, essential amino acids, fatty acids, minerals and abundant in proteins and vitamins (Campos, 2010). Enzyme activity of pollen in honeybee (Apis cerena Fab.) reported to find the source of enzyme in Indian honey (Wakhle, Phadke and Nair, 1983). Honeybees collect pollen to fulfil
persica (L.) Batsch, var. nectarina] belong to the Rosaceae family and are thought to have originated in China (Salunkhe and Desai, 1984). A peach fruit is approximately 87% water with 180 kJ (43 kcal) and contains carbohydrates, organic acids, pigments, phenolics,vitamins, volatiles, antioxidants and trace amounts of proteins and lipids, which make it very attractive to consumers (Kader and Mitchell, 1989b; USDA, 2003). Peaches and nectarines ripen and deteriorate quickly at ambient temperature
When approaching the topic of hair chemistry, one may think about the question, where does hair come from? Saclike holes called follicles are located all over the human body. At the bottom of these follicles are a cluster of papilla responsible for the growth of hair. As the papilla, otherwise known as hair bulbs reproduce to make new hair cells, the old ones are pushed up towards the surface of the skin causing the hair to grow longer. This may seem like a simple concept to grasp. However, the process
of soda, is sodium bicarbonate. (Baker Bettie, 2013) Sodium bicarbonate has a high pH, that when incorporated with another acid will react quickly. Although carbon dioxide, is created when baking soda is combined with an acid with low pH. Baking soda will make cookies rise during the baking process, once it reacts with an acid. There must be a common acid (examples of acids are: buttermilk, sour cream, citrus juice, vinegar, and cream of tartar) added to the recipe to produce CO2 if the baking soda
As you may know, when you mix baking soda and vinegar there is a big reaction, but have you ever wondered how this reaction happens? Well in order to find out how it happens you will need to know the elements that make up baking soda and vinegar. You will also learn why these elements are where they are on the periodic table and what is released during the baking soda and vinegar reaction. Baking soda is made out of sodium, carbon, and 2 oxygens while vinegar is made up of 4 hydrogens, 3 carbons
Boats and motorized watercraft are great for a fun day on the lake, but how fun are they for the diverse ecosystems living just beneath the hull of your boat? Boat exhaust and small traces of gasoline and oil are emitted into the waters when motorized watercraft are running. Boats have been shown to affect water clarity and can be a source of algal growth in aquatic ecosystems. The toxins emitted from boats can add chemicals to the water. Certain amounts of the fuel that is in motors is discharged
products can be acidic, bases or neutral. It was very interesting to learn that many acids are not dangerous. Some are even found in the food that we eat. Any food that taste sour is acidic. Bases are also found in common household products. They can be very strong and dangerous or weak and safer for use around the house. 2. INVESTIGATIVE QUESTION To prove how much acidic levels are in our household products and foods ACID BASE NEUTRAL Coffee Ammonia Olive Oil Lemon Juice Baking Soda Melted Butter Soda
1. Definition of Acid and Bases: 1.1 Arrhenius definition of acid and base: Arrhenius Acid: The substance or a compound which gives H+ ions in aqueous solution Arrhenius base: Base is a substance or compound that produces OH- ions in aqueous solutions. Chemists have known for some time that the H+ ion doesn’t exist in aqueous solutions as an independent species. The modernized Arrhenius definition of acid is that they are substances that produce H3O+ ions in aqueous solutions. It did not take longer
The bicarbonate then reacts with the hydrogen from the citric acid, and this reaction makes water and carbon dioxide. By mixing water with the Alka-Seltzer® tablet, the whole reaction process is started, and that process ultimately results in bubbles of carbon dioxide gas being given off. When the film canister is