The acid-base titration curves help to find the pKa‚ Ka‚ and pH at equivalent point. At the beginning pH for HCl is 1.90 which is lower than the 3.28 for acetic acid; thus‚ strong acid (HCl) means lower pH and weak acid (acetic acid) means higher pH. Then at the equivalent point for the titration HCl-NaOH the pH is 7‚ which mans that is neutral‚ in other words there are enough NaOH mmol to neutralize the HCl mmol present; also‚ the solution contains only water and NaCl the salt derived from the titration
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Project Title: Making of Malunggay Salad and Lemon Grass Juice I. INTRODUCTION 2.1 BACKGROUND OF THE PROBLEM One of the main issues that we have right now is getting the right vitamins and nutrients to our body. How we will do this is by choosing the food that we eat. Aside from that‚ we have to take consideration its cost. Can Filipino‚ in all walks of life‚ afford a healthy meal? More Filipinos have been eating rice just to withstand empty stomach rather than eating a balanced
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FDA Regulation of Vitamins & Dietary Supplements in the U.S Course: International Business Management BICG 9702 Instructor: Dr. Carmen Dima Date: December 4‚ 2012 Done By: Nolwazi Dhliwayo and Hasnain Akber Ali EXECUTIVE SUMMARY Vitamins and dietary supplements are non-drug and non-hormone based products that can be consumed orally in the form of pills‚ powders‚ liquids or intravenously by injection. Their function is to supplement the diet‚ affording consumer’s added nutritional
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William Piumbroeck Chem 214 Acid-Base Titration‚ Determination of Carbonate and Bicarbonate in a water sample Introduction The purpose of this lab is to determine the concentration of two bases‚ carbonate and bicarbonate‚ by using a potentiometric titration. We can determine the concentration of the bases in the reactions ( H+ +CO3- < ==> HCO3- and H+ + HCO3- < ==> H2CO3-) by the way the pH of the solution changes. The way the pH changes when a strong acid is added can
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Titration for Acetic Acid in Vinegar Purpose: The Primary Purpose of this Experiment is to Determine the Percent Content of Acetic Acid in a Household Bottle of President’s Choice Vinegar‚ using Titration Techniques. In addition‚ a Secondary Purpose for this Experiment that Derives Directly from the Primary Purpose is to Gain Hands On Experience in Titration Techniques‚ as a Vital Tool in our Quest to Understanding the Chemical Aspect of the World around Us. Procedure Conducting a Titration
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EXPERIMENT NO. 7 Quantitative Analysis of Soda Ash by Double-Indicator Titration ABSTRACT This experiment aims to analyze the percent composition of a substance mixture by using double indicator titration. The analyte used is the soda ash which is titrated with an HCl titrant‚ standardized by 1o Na2CO3. The indicators used are phenolphthalein for basicity and methyl orange for acidity. The two volumes of the titrant are then used to calculate percent composition of soda ash analyte. Statistical
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DKFLSDFKLFKJ | Acid-Base Titration. | kfjhdkjhvdkfj | | April Jowers | 12/19/2012 | DKFJSDKJFHDSKJHF | Introduction In this lab we will use basic titrating skills and techniques in order to titrate HCl. We will also be practicing how to prepare the solution. Using the titration data‚ we can practice our stoichiometric skills and also become more familiar with using lab equipment. Titration is the process of measuring the exact volume of a solution of known concentration that is
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Amount of liquid needed to decolourise DCPIP (cm³) | Control | 0.35 | Apple | 57.8 | Lemon | 3.7 | Pineapple | 1.4 | Fruit Juice | Concentration of Vitamin C (mg/cm³) | Apple | 0.06055 | Lemon | 0.94594 | Pineapple | 1.94444 | Concentration Juice Type Juice Type Amount 3.5/volume of fruit juice = ____mg/cm³ of Vitamin C in the fruit juice. The experiment was reliable as we repeated; the experiment and we cross referenced it with other groups. Our validity is ensured by the
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Many people have never heard of C-ASIST and are always amazed to hear what they do for the community. I now have an ‘elevator speech’ prepared for when people ask what it is. I always say “C-ASIST‚ is a non-profit organization that offers a free health clinic once a month to help the underinsured and the uninsured.” People don’t know how it works and how the founders are able to run a free clinic‚ but I explain to them that it is all volunteer based so they do not have to pay anyone that works at
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remaining solution in the buret and record it. 9. Position the buret over the Erlenmeyer flask so the tip of buret is 2cm above the liquid. 10. Add three drops of phenolphthalein solution to the KHP solution in the flask. 11. Begin the titration by adding 1.0 mL of NaOH solution to the flask and swirl the flask to mix the content. 12. Repeat this step until 15mL of NaOH has been added to the flask. 13. Reduce the incremental volumes of NaOH to 0.5 mL until pink color persists. Reduce
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