Review of Related Literature Related Readings Republic Act No. 9275 Philippine Clean Water Act of 2004 is an Act providing for a comprehensive water quality management and for other purposes. In Section 2 of this Act‚ it states that the State shall pursue a policy of economic growth in a manner consistent with the protection‚ preservation and revival of the quality of our fresh‚ brackish and marine waters. The State wants to manage and reduce the population of water resources of the country
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VOLUMETRIC ANALYSIS 1. In volumetric analysis‚ the volume of a reagent needed to react with analyte is measured. 2. In a titration‚ increments of the reagent solution -the titrant-are added to the analyte until their reaction is complete. 3. The most common titrations are based on: - acid-base - oxidation-reduction - complex formation and - precipitation reactions 1. Methods of determining when the analyte has been consumed include: - detecting a sudden change in
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An Introduction to Water Analysis February 1 and February 8 2011 Aim and Objective: The aim of this experiment was to determine the pH level of an unknown HCl solution. While doing so‚ we would also be receiving a good and fundamental understanding of how to use modern lab equipment to determine the chemical and physical properties of water bodies. Method: Make sure safety gear is always on and equipment is always clean. Part 1- Direct Analysis by pH Test Kit We grab a 50ml beaker
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9 Experiment A Volumetric Analysis A titrimetric analysis requires the careful addition of titrant. • To prepare and standardize a sodium hydroxide solution • To determine the molar concentration of a strong acid Objectives The following techniques are used in the Experimental Procedure Techniques 2 4 16b 16a 90 80 5 16c 6 13c 15a 15b ! A chemical analysis that is performed primarily with the aid of volumetric glassware (e.g.‚ pipets‚
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is to show that similarly to week 1‚ the molarity of an acid or base in solution can be determined (so long as one value’s is known) using titration. In this case though‚ finding the molarity of the acid used in the reaction is then used to determine the percent of that acid in a vinegar solution and compared to the standard value for % acid present in vinegar. The second part of the experiment was to see if by titrating a solution of NaOH and an unnamed mystery acid‚ you could find the molar mass
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ANALYSIS OF ASPIRIN TABLETS The aim of this investigation is to determine the percentage by mass of aspirin aspirin present in different commercial preparations and to find out‚ which the best value is‚ using a neutralization reaction followed by a direct titration with NaOH. Chemicals Used: 100 ml of distilled water in a wash bottle 50 ml of 0.100 M NaOH 40 mL of 96% ethanol phenolphthalein as an indicator (3 drops per titration) 325 mg non buffered aspirin tablets Materials Used: One
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Redox Titration Analysis of a Commercial Bleach Purpose To perform a redox titration. To determine the amount of hypochlorite ion present in commercial bleach. Introduction Many commercial products‚ such as bleaches and hair coloring agents‚ contain oxidizing agents. The most common oxidizing agent in bleaches is sodium hypochlorite‚ NaClO (sometimes written NaOCl). Commercial bleaches are made by bubbling chlorine gas into a sodium hydroxide solution. Some of the chlorine is oxidized
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Analysis: Water Analysis Jasmine Kennedy Bey Lab Partners: Mohammed Alabbad‚ Drew Blackson Chemistry 1290-020 3/26/2014 TA: Rajendr Thakuri Purpose/Abstract: Students are tested for their knowledge of basic titration technique and proper usage of specific-use probes (those used for conductivity‚ alkalinity‚ and pH‚ chloride‚ nitrate and hardness detection) on Logger Pro software. The purpose of this comprehensive lab is to determine the chemical properties
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References: 1. Kippenhan‚ Edith. Chem 1290 Laboratory Manual: Water Analysis. Cengage Learning. Mason‚ Ohio. 2012. 2. Procedure given to us in lab. 3. http://en.wikipedia.org/wiki/Total_dissolved_solids 4. http://www.watersystemscouncil.org/VAiWebDocs/WSCDocs/9709284pH_Update_September_2007.pdf
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less pain. For this reason‚ it is very likely to be the percentage of acetylsalicylic acid (ASA) affecting the efficiency of aspirin‚ and this could be proved through simple neutralization reaction by titration with basic solution‚ such as sodium hydroxide. The more sodium hydroxide needed in the titration‚ the more the amount of ASA in aspirin‚ thus the more powerful the aspirin is. The equation would be: C6H5OCOCH3COOH+NaOH → C6H5OCOCH3COONa++ H2O As the percentage purity of the aspirin is
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