IUPUI October 12‚ 2012 Titration of Acids and Bases Introduction According to Arrhenius definition‚ acid is substance that produces H3O+ ion while base is substance that produces OH- ions. The reaction between acid and base often yields the products of salt and water. The formation of water in this neutralization reaction is caused by the combination of H3O+ and OH- ions. In order to determine the concentration of an unknown acid and base‚ a method called acid-base titration is used. The end of
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Chapter 25 Discriminant Analysis Content list Purposes of discriminant analysis Discriminant analysis linear equation Assumptions of discriminant analysis SPSS activity – discriminant analysis Stepwise discriminant analysis 589 590 590 593 604 When you have read this chapter you will understand: 1 The purposes of discriminant analysis. 2 How to use SPSS to perform discriminant analysis. 3 How to interpret the SPSS print out of discriminant analysis. Introduction This chapter
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1. Prepare the burette and fill with the sodium hydroxide solution to 50ml. 2. Pipette the KH(C8H4O4) solution into a conical flask. Use three drops of phenolphthalein as the indicator. 3. Titrate carefully until a colour change from colourless to pink is observed. 4. Perform a rough titration first‚ then repeat until 3 concordant
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Redox Titration Analysis of a Commercial Bleach A. Purpose ! ! ! To review oxidation-reduction reactions and their stoichiometry. To learn the concept and technique of redox titration. To determine the percent (m/v) of an active ingredient‚ sodium hypochlorite (NaOCl)‚ in a commercial bleaching agent. B. Theoretical Background Whereas acid-base reactions involve the transfer of a proton‚ oxidation-reduction or redox reactions involve the transfer of electrons from one substance to
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Final Assignment Take-Home Exam – Example Solutions QUANTITATIVE ANALYSIS AND BUSINESS DECISION MAKING Question 1 – 5 Points Leila took a standardized test and was told that her score was in the 89th percentile. Explain clearly and in only one sentence what this means. Notes: Percentiles are a way of describing the position of a particular score within a set of scores As per the question‚ I was looking for one simple sentence to explain the meaning of the statement Ideal Answer: If Leila’s
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Fe(NH4)2(SO4¬)2.6H2O = 392.13gmol-1 Volume of Fe(II) solution prepared = 0.250L Standardizing Potassium Permanganate Solution Stated concentration of KMnO4 (aq) on container = 0.02mol Volume of Fe(II) solution pipetted for titration = 25.0mL Burette Reading (mL) Titration Numbers 1 2 3 4 5 Final 24.40 25.00 49.30 23.80 47.50 Initial 0.00 0.00 25.00 0.00 23.80 Titre 24.40 23.80
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Linear Programming D.V. – Decision Variables O.F. – Objective Funtion S.T. or CONST - Constraints Constrained Mathematical Model – a model with an objective and one or more constraints EXAMPLE: 50D + 30C + 6M is the total profit for a production run($50 profit for Desk‚ $30 profit for Chair and $6 per pound for steel) Functional Constraints - ≤ ≥ or = --Restrictions that involve expressions with 1 or more variables EXAMPLE: 7d+3c+1.5M <= 2000 (constraint on raw steel) Variable Constraints
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Introduction Titration is a volumetric analysis technique used to find the concentration of an unknown substance. There are several types of titration but the one used for this experiment is called acid-base titration as the substance we are titrating is acidic. Acid-base titrations are based on the neutralisation reaction between the analyte and the acidic or basic titrant. The analyte is the solution of unknown concentration and the titrant is the solution of accurately known concentration used
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final project entails systematic extraction of decision-aiding insights out of a dataset. The project will provide hands-on experience in conducting and interpreting different types of function-wise statistical analysis. The focus of the analysis will be on marketing strategies and analysis-related topics (South University Online‚ 2012). The sample set was examined thoroughly to reveal findings relevant to the marketing strategies and the interpretation of the data. The median income is between
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as a reference material in all volumetric & mass titrimetric method.A reagent solution of accurately known concentration. * End point-point at which the reaction is observed to be complete and there is permenant colour change at the end of titration. * Equivalent point-point at which an equivalent amount of titrant is added to analyte. * Titrant-the reagent which is place in the burette & will added to analyte until end point reached. * Titre value-the amount of titrant by taking the
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