Anna Powell 2nd I.Title: Acid-Base Titrations AP Chemistry Laboratory #6 II.Purpose: The purpose of this experiment is to standardize a sodium hydroxide solution and use the standard solution to titrate an unknown solid acid. The equivalent mass of the solid acid will be determined from the volume of sodium hydroxide added at the equivalence point. The equilibrium constant‚ Ks‚ of the solid acid will be calculated from the titration curve obtained by plotting the pH of the solution versus
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quantity of solid dissolved in solution. It may also be used to calculate the molar mass of an unknown acid or base. Purpose: I. Prepare a standard solution of sodium hydroxide II. Standardize a sodium hydroxide solution by using potassium hydrogen phthalate (KHP) III. When given whether the acid is monoprotic‚ diprotic‚ or triprotic ‚ determine the molar mass of the unknown organic acid. IV. Calculate the Molarity of the Soft drink. Materials: * 50 mL Buret * Beaker
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Titration Lab How Much Citric Acid is in Your Soda? PURPOSE To determine the molarity (concentration) of citric acid (H3C6H5O7) in various different citrus flavored sodas. BACKGROUND PRINCIPLES Popular sodas all strive for a somewhat sour (’tart’) flavor and manufacturers utilize acids to impart this taste. While there are a vast variety of different brands of sodas on the market‚ they can be broken into two main categories: dark or clear. This differentiation is not only a simple color
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Experiment Acids‚ Bases‚ and Neutrals Problem Are common house-hold products pH balanced and neutral? Information Gathered pH measures how acidic or alkaline a solution is. The pH scale ranges from 0-14. Solutions that range from 0-6 are considered to be acidic. Solutions that are on the acidic end of the scale are low in pH‚ high in hydrogen ion‚ and low in hydroxyl ions. An acid has a sour taste‚ hence‚ will react to metal and will be corrosive; therefore‚ they are considered as an electrolyte
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ASIAN CASE RESEARCH JOURNAL‚ VOL. 13‚ ISSUE 1‚ 157–176 (2009) ACRJ Adani Wilmar Limited (AWL) This case study was prepared by Sarang Deo‚ Sanjay Kumar Singh‚ G. Raghuram and Sanjay Choudhari. Sarang Deo and Sanjay Singh were PGP II students during 1999–2001 at Indian Institute of Management‚ Ahmedabad (IIMA). Presently‚ Sarang Deo is on the Faculty at Kellogg School of Management‚ Northwestern University‚ USA. Sanjay Kumar Singh runs a healthcare services company named SWAS Healthcare from Ahmedabad
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Republic of the Philippines Department of Education Region VII‚ Central Visayas Division of Cebu City South District GUADALUPE ELEMENTARY SCHOOL “MAKING SHOE POLISH OUT OF USED COOKING OIL AND CALAMANSI JUICE” NAMES: ANGEL‚ PHIL AUSTIN D. ALBURO‚ HERRY ABAPO‚ JERICO ALONTO‚ ALBERTO ABSTRACT This study aims to use used cooking oil as shoe polish rather than just throwing it away (which can cause drainage clogging). Calamansi juice is also added to add more viscosity to the product. This study also
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Investigatory Project in Physics IV EMERGENCY LIGHT Submitted By: Angela Abainza Gladies Mansit Rhomabelle Ortega Submitted To: Sir Erdie Asuncion Acknowledgement The students’ wish to extend their appreciation and gratitude to the following persons who gave some of their valuable contribution toward the completion and success of this study. To our parents and relatives who gave us permission‚ advices‚ and suggestions towards the completion of our project
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Properties of Acids and Bases Diagram: A B C D E F Bromothymol Blue Universal Indicator Phenolphthalein Litmus Paper Analyze: 1) F‚ C‚ D‚ B‚ A‚ E 2) D is neutral because it turned to the colour of green when it came in contact with the indicator Bromothymol Blue. The acid or base is green between 6.0-7.6 pH. 3) Solution E is more alkaline (more basic) than solution A because when E came into contact with the indicator Bromothymol Blue it turned
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A buffer is an aqueous solution that allows resistance to significant change in pH when small amounts of strong acids or base are added to it. (Boundless‚ 2015) This is usually formed when a weak acid is added to a salt of its conjugate base. (Chemicool.com‚ 2014) When an Alka Seltzer tablet is dissolved in water‚ a buffer is formed when the weak acid citric acid is present with sodium citrate (citrate ion) the conjugate base (Buffer Balancing Acts Buffers‚ 2009) "Na3C3H5O7 (aq) + 3 HCl (aq)
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Experiment #7: Acids‚ Bases and Salts Mabag‚ Viannery D.‚ Mangune‚ Paolo D. Chem 14.1‚ MAB1‚ Ms. Angelyn del Rosario March 8‚ 2010 I. Abstract The experiment allowed students to explore different electrolytes and classify them into acids‚ bases and salts by using different indicators or by measuring the pH levels of each. The experiment also helped students classify different substances through their conductivity properties. The preparation of a 1 M stock solution from NaOH pellets diluted to a
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