"Calcium carbonate" Essays and Research Papers

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    Lab Report

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    BACK TITRATION- DETERMINATION OF THE CARBONATE CONTENT IN GARDEN LIME NAME: OSEI BONSU ERIC ID: 3906409 EXPERIMENT: I.2.2.1.

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    calcium

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    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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    Weigh out your 1.0g of CaCl2-2H20 and put it into the 100mL beaker‚ add your 25mL of distilled water and stir to form the calcium chloride solution. Next‚ use stoichiometry to determine how much Na2CO3 and put it into a small paper cup. Then add the 25mL of distilled water to make the sodium carbonate solution. Mix the two solutions in the beaker and a precipitate of calcium carbonate will form instantly. Next‚ set up your filtration assembly. After the filtration assembly is ready‚ swirl the contents

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    PRE-LAB QUESTIONS: 1) What cations are responsible for water hardness? Ca2+ and Mg2+ are responsible for water hardness 2) Calculate the mass of disodium Ethylenediaminetetraacetate required to prepare 250 mL of a 0.010 M solution. Mass = M x L x MM  0.010 M x 0.250 L x 372.24 g/mol = 0.93g of Na2H2Y 3) What is the molar concentration of the Na2H2Y solution? mol Ca = M x L  0.0107 M x 0.025 L = 2.65 x 10-4 mol if 1 mol of Ca = 1 mol Na2H2Y then: M of Na2H2Y = mol / L  2

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    Hardness of Water

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    Experiment 05 Water Hardness October 8th‚ 2013 The hardness of water was determined using the methods of titration‚ conductivity‚ and pH analysis. The mean and uncertainty of CaCO3 is 134±36.0 ppm. An error that could have potentially happened could be that the equivalence point was not correctly established causing inaccurate data. BACKGROUND: 1In hard water there is a high amount of mineral content present in the water. Most of the mineral content that is present

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    Gas Laws

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    Common Name: Pearl Scientific Name: Calcium Carbonate Formula: CaCO3 Fundamental particles: Pearls are comprised of a positive Calcium ion (Ca+) and a negative Carbonate polyatomic ion (CO3+) Usage: Jewelry Properties: Pearls are good jewelry because they are hard and lustrous. Pearls are hard because of the strong Intermolecular forces created between the Calcium and the Carbonate ions. The pearls luster is dependent on the amount of nacre excreted. The Oyster produces nacre when

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    GREEN MUSSEL (Perna Viridis) SHELLS AS AN ADDITIVE COMPONENT IN HOLLOW BLOCK MAKING Abstract Hollow blocks have an important place in modern building industry. They are cost effective and better alternative to burnt clay bricks by virtue of their good durability‚ fire resistance‚ partial resistance to sound‚ thermal insulation‚ small dead load and high speed of construction. Hollow blocks being usually larger in size than the normal clay building bricks and less mortar is required‚ faster

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    precipitate reaction happens when cations and anions of certain aqueous solutions react and combine forming a precipitate‚ which is an insoluble ionic solid. In this precipitate reaction we dissolved both chosen chemicals (powder Calcium Chloride dihydrate and powder Sodium Carbonate) in distilled water and then mixed them together in a single beaker. Finally we filtered this mixture and let all the water evaporate leaving behind solely the precipitate. In order to determine the amounts needed of each reactant

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    Can Water Damage Concrete? Concrete is among the most useful substances ever produced. Mixed and used well‚ it produces a very durable material that’s perfect for constructing buildings and other structures. Science‚ however‚ has other ideas. While many may consider concrete very sturdy‚ its biggest enemy seems somewhat benign in comparison: water. Industry experts such as AlliedFinishes.com offer good proof. In commercial settings‚ buildings like warehouses and large-scale kitchens often feature

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