To compare the concentration of vitamin C in different brands of orange juice. Juice sample provided: 0.1% vitamin C solution‚ fresh orange juice‚ You C 1000 orange water. Aim of investigation: To compare and verify the amount of vitamin C in Mr. Juicy and You C 1000 orange juice. Introduction: Problem: To compare the concentration of vitamin C Hypothesis: Concentration of vitamin C in Mr. Juicy is about 0.02 % Concentration of vitamin C in You C 1000 orange water is about 0.1%
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provides the most vitamin C? In my investigation I plan to find out how much vitamin C there is in orange juice‚ pineapple juice and tropical juice and then compare my results to find out which juice has the most vitamin C. The independent variable is the type of juice and the dependant variable is the volume of fruit juice needed to decolourise 1cm3 Of 1% DCPIP solution. DCPIP solution can be used to measure the amount of vitamin C in each juice as an antioxidant (like vitamin c) reduces the blue
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Communities. N.p.‚ n.d. Web. 28 May 2010. <http://cnx.org/content/m17138/latest/>. 3. "Phenolphthalein." Digipac Microcomputer Software. N.p.‚ n.d. Web. 28 May 2010. <http://digipac.ca/chemical/equilibrium/phenolpthalein.htm>. 4. "Titration." An Introduction to Chemistry - Bishop. N.p.‚ n.d. Web. 28 May 2010. <http://chiralpublishing.com/Bishop_Titration.htm>. 5. stander. "Acids and Bases." Chemistry and New Zealand. N.p.‚ n.d. Web. 28 May 2010. <http://www.chemistry.co.nz/acids_and_bases
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Vitamins‚ Nutrients‚ and Minerals Vitamins‚ nutrients‚ and minerals are all important substances that are required to lead a happy‚ healthy life. Firstly‚ vitamins are an organic compound required by the body in small amounts of metabolism‚ to protect health‚ and for proper growth of children. Vitamins also assist in the formation of hormones‚ blood cells‚ nervous systems chemicals‚ and genetic material. There are 13 well-identified vitamins. Some examples of the 13 well-identified
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BACK TITRATION AIM - To estimate volumetrically the amount of calcium carbonate present in the eggshell and analyzing the sources of errors to evaluate the result. Part A: Standardization of 2M NaOH(aq) Data Collection : Weight of substances Uncertainty Weight of watch glass + salt (potassium hydrogen phthalate) w1= 23.4380g ± 0.001g Weight of watch glass ( after emptying the salt)w2 = 21.5430g ± 0.001g Weight of salt (potassium hydrogen phthalate) w1 –w2= (23.4380± 0.001g) – (21
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classes of vitamins are Fat – soluble vitamins and water – soluble vitamins. Fat – soluble vitamins include vitamin A‚ vitamin D‚ vitamin E‚ and vitamin K. These vitamins are considered fat soluble vitamins because they are stored in the body for long periods of time and are harder to break down‚ while water soluble vitamins are not. Water – soluble vitamins include vitamin B1 (thiamin)‚ vitamin B2 (riboflavin)‚ vitamin B6‚ vitamin B12‚ and vitamin C‚ folic acid‚ and niacin. These vitamins are classified
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History and Introduction In the early 1990’s‚ when Manhattan was hit by water contamination‚ Bikoff set out to buy bottled water and found that except for the brand name‚ there was very little difference between the different brands of bottled water sold. Bikoff was looking for additional nutritional value rather than plain water. Finding none‚ he started conducting an in-depth study about different companies making bottled water. He found that he could use vapor distillation to create an alternative
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Chemistry 12 12/Oct/2011 Titration- Analysis of Aspirin Tablets Objective: Determine the percentage of aspirin (acetylsalicylic acid) present in two different commercial tablets by titrating the solution with a base. Also determine whether the aspirin is a strong or weak acid according to the Bronsted- Lowry and Lewis theories and deduce the formula of the acid- base reaction. Independent Variable: The amount of base (NaOH) in moles that are needed to neutralize the solution. Dependent Variable:
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VITAMINS AND MINERALS Vitamins and minerals make people’s bodies work properly. Although you get vitamins and minerals from the foods you eat every day‚ some foods have more vitamins and minerals than others. Vitamins fall into two categories: fat soluble and water soluble. The fat-soluble vitamins — A‚ D‚ E‚ and K — dissolve in fat and can be stored in your body. The water-soluble vitamins — C and the B-complex vitamins (such as vitamins B6‚ B12‚ niacin‚ riboflavin‚ and folate) — need to dissolve
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given Solution using Titration Morphy Kuffour Mrs. Langlis‚ AP Chemistry C-D 9/24/2017 Purpose: Determining the precise concentration of vinegar through titration using a standard solution of Potassium Hydroxide (KOH) (aq) Background: Vinegar is a solution of acetic acid (CH3COOH) in water. The concentration of acetic acid in Vinegar is written as a Molarity (mol/L). In this experiment‚ titration is used to determine the concentration of acetic acid in vinegar. Titration is an experimental technique
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