Performance Indicator Memo Executive Summary The aim of Performance Indicator is to increase golf ball manufacturers’ value by increasing revenue from new ball sales as a result of eliminating older‚ used balls through its color change coating technology. Although there appears to be a possible financial benefit based on the future perceived demand for new golf balls‚ PI’s new technology does not appear to have any transparent benefit or value creation for the end consumer (golfer). Consequently
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the use of a pH indicator‚ a pH meter‚ or a conductance meter. The use of a pH meter to quantitatively determine the end point of a titration reaction is preferred to the use of visual indicator. This is because the pH meter monitors the change in pH at the equivalence point rather than just observing the color change in the visual indicator‚ and this eliminates the indicator blank errors. The use of a pH indicator is often regarded as tedious as compared to using visual indicators. However‚ knowing
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2.197×10-3x 2 1 = 4.394x10-3 mole HCl Thus‚molarity HCl = n/v = 4.394x10-3 mole 42.87x10-3L = 0.1025 M. The suitable indicator is phenolphthalein. Primary standard | Secondary standard | * A reagent is highly serves as a reference material in all volumetric. * High purity about 99.99% purity. * Can be prepared and maintained in high state of purity
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Background Information Part 1 In the first part of the enzyme lab‚ we mixed a substrate and an indicator with an enzyme. There was also a neutral buffer in each of the chemical mixtures. The neutral buffer regulated the pH to around 7. We got a color palette and once we mixed each together‚ we observed and saw a change in the color of the substance. The darker and more brown the substance got‚ the more oxygen produced by the reaction. Our results showed that amount of oxygen produced increased
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EXPERIMENT 2 ACID DISSOCIATION CONSTANT OF AN INDICATOR DYE OBJECTIVES Using spectrophotometric method: determine the wavelengths at which the acid and base forms of the dye in aqueous medium exhibit maximum absorption; determine the molar absorptivities of the acid and base forms of the dye and estimate an unknown concentration of the dye in solution using the Beer-Lambert’s Law; and determine the acid dissociation constant of the indicator dye. THEORY The absorption or reflection of
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the titration curves to calculate the percent of the active ingredients in the commercial cleansers. to determine the Ka of a weak acid. Procedure Overview • • • • after calibration of the pH electrode and determination of the flow rate for the automatic titration‚ a NaOH solution is standardized against HCl. a pH titration curve for acetic acid is obtained and its pKa is determined. an unknown sample of Lysol is analyzed for its HCl content using the standardized NaOH. an unknown sample of Liquid
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ACIDS‚ BASES AND SALTS 1. What are indicators? What are the different types of indicators? An indicator is a dye which changes colour when put into an acid or a base. The different kinds of indicators are- Natural indicators- Litmus is a natural indicator‚ litmus solution is a purple dye which is extracted from a plant called lichen. Litmus turns red in acidic solutions and blue in basic solutions. Other
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LAB 6. ACIDS AND BASES: PH AND BUFFERS PURPOSE: To determine the pH of common acids and bases using a pH meter‚ pH paper‚ and red cabbage indicator. To test the effect of adding an acid or base to a buffer solution. SAFETY CONCERNS: Always wear safety goggles. Wash with soap and water if skin contacts acids or bases. ACIDS: An Acid is a substance that when dissolved in water will produce hydrogen ions‚ H+‚ in the solution. An acid that does not contain carbon is called an inorganic
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Acid Base And Salt Acid Acids:- The word ‘Acid’ came from Latin word ‘Acidus or Acere’ which means sour. Sour taste is the most common characteristic of acid. Acid turns blue litmus paper red. There are many substances which contain acid and hence taste sour‚ such as curd‚ tamarind‚ lemon‚ etc. Types of Acids:- Acids are divided into two types on the basis of their occurrence – Natural acids and Mineral acids. Natural Acid:- Acids which are obtained from natural sources are called natural
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suitable water hardness under particular circumstances. This was conducted for the purpose of applying the concept of complexometric titration using an efficient chelating agent‚ EDTA. Sample mineral water was analyzed using standard EDTA with EBT as indicator‚ and calcium ions present in the solution were calculated to determine the hardness of the water sample. At the end of the experiment‚ the results indicated that the mineral sample water has large amounts of calcium and magnesium ions—an implication
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