Journal of Engineering Science and Technology Vol. 1‚ No. 2 (2006) 203- 211 © School of Engineering‚ Taylor’s University College DRINKING WATER FROM DESALINATION OF SEAWATER: OPTIMIZATION OF REVERSE OSMOSIS SYSTEM OPERATING PARAMETERS MARWAN M. SHAMEL1*‚ OWEE TZE CHUNG2 1 Department of Chemical Engineering School of Engineering‚ Taylor’s University College No. 1‚ Jalan SS15/8‚ 47500 Subang Jaya‚ MALAYSIA *Corresponding Author: marwan.s@taylors.edu.my 2 Malay-Sino Chemical Industries
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An investigation in to the rate of reaction Plan: I am going to investigate the rate of reaction. The reaction I will be using is: Calcium Carbonate + Hydrochloric acid ---- Calcium Chloride + water + carbon dioxide. CaCO3 + 2HCl ---- CaCl +H2O + CO2 Measurements and Variables: The variables I have chosen to change is strength of the hydrochloric acid which will be 1 mole‚ 0.7 mole‚ 0.5 mole‚ 0.3 mole and 0.1 mole some variable I will not be using are temperature‚ mass‚ density. The measurements
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OXIDATION-REDUCTION TITRATIONS REDOX TITRATION • involves oxidizing agents and reducing agents titrants and analytes • oxidizing agents used as standard solutions: potassium permanganate‚ KMnO4 potassium dichromate‚ K2Cr2O7 iodine‚ I2 ceric sulfate‚ Ce(SO4) 2 potassium iodate‚ KIO3 REDOX TITRATION • reducing agents used as standard solutions: ferrous sulfate‚ FeSO4 oxalic acid‚ H2C2O4 sodium oxalate‚ Na2C2O4 sodium thiosulfate‚ Na2S2O3 titanous chloride
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(2) 3 When calcium carbonate is heated it decomposes. The equation for this reaction is: CaCO3 → CaO + CO2 a Use numbers from the list to complete the sentences. 2 3 4 5 6 i The number of products in the equation is ....... (1) ii The formula CaCO3 shows that calcium carbonate was made from ....... different elements. iii The equation is balanced because there are ....... atoms on both sides.(1) (3) b Other metal carbonates decompose in a
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| A little book of tips for titrations. • Recording results • Calculating the average titre • Evaluation of results • Evaluation of procedures Recording results and calculating the average/mean titre: |Titration |Rough |1 |2 |3 |4 |5 | |Initial burette
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INTRODUCTION Differences between acids and bases An acid-base reaction is based on the reaction involving the ionization of water H2O -> H+ + OH- This means that water can break apart into a hydrogen ion and a hydroxide ion. These two ions can also join together to form a water molecule. When a strong acid is placed in water‚ it will ionize completely‚ and break down into its constituent ions in which one of it a hydrogen ion. When a strong base is placed in water‚ it will ionize
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Introduction In order to determine the content of calcium and magnesium in an unknown sample of limestone‚ the utilization of atomic absorption spectrophotometry can help in deciphering the unknown concentrations of each molecule in the limestone sample. Atomic absorption spectrophotometry‚ emits radiation of the correct frequency that is passed through a flame and the intensity of the transmitted radiation is measured¹.The calcium concentration or ppm can be measured using the absorbance of the
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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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Name: Susan Sooklal Partner’s Name: Adana Taylor & malia Taylor Date: 26.02.2013 Title: titration method AIM 1. To titrate sodium hydroxide with hydrochloric acid Apparatus: * Burette (50cm3) * Pipette (10cm3) * Three (3) Conical Flasks (250cm3) * Two (2) Beakers (250cm3) * Funnel * Wash Bottle * Retort Stand * Boss and Clamp * Pipette filler Material: * 0.08 mol dm-3 hydrochloric acid * 0.1 mol dm-3 sodium
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Titration is a common laboratory method of quantitative chemical analysis that is used to determine the unknown concentration of a known reactant. Because volume measurements play a key role in titration‚ it is also known as volumetric analysis. A reagent‚ called the titrant or titrator‚[1] of a known concentration (a standard solution) and volume is used to react with a solution of the analyte or titrand‚[2] whose concentration is not known. Using a calibrated burette or chemistry pipetting syringe
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