Determination of Water Hardness Using a Titrator Heather Crall Chemistry 1 SMT- 271044 10/17/2012 Abstract From seeing all of my results and conclusion I now see that I didn’t understand this lab very well and that its not easy when others try to help. Since I have hard water it tells me that my water flows over and through rocks and minerals‚ like limestone. Purpose The purpose of this lab is to become familiar with the concept of water hardness. We learn that hard water contains
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off in some places‚ revealing crumbling stone beneath. This black crust is primarily composed of gypsum‚ a mineral that forms from the reaction between calcite‚ water‚ and sulfuric acid. Gypsum is soluble in water; although it can form anywhere on carbonate stone surfaces that are exposed to sulfur dioxide gas (SO2)‚ it is usually washed away. It remains only on protected surfaces that are not directly washed by the rain. Gypsum is white‚ but the crystals form networks that trap particles of dirt and
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Cement Cement + sand + water Mortar Cement + sand + gravel + water Concrete Limestone + sodium carbonate + sand Glass Other uses Agriculture – Neutralizes soil Cosmetics – Nail polishes‚ creams‚ etc. Healthcare – Major ingredient in tooth pastes Pharmaceuticals – Used as carrying agent Edible products – Added to bread for calcium Paint – White in color hence used in all paints Printing – Used on magazine papers to give shine Iron Smelting
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provide sorbents for flue gas desulfurization in power plant. LM vertical grinding mill products can improve the combustion efficiency of coal and flue gas desulphurization. are many types of non-metallic minerals‚ pyrophyllite and kaolin‚ calcium carbonate‚ quartz sand‚ gypsum‚ bentonite‚ material characteristics vary widely‚ its processing characteristics of product fineness is high‚ usually in the 97% by 1250~325 (10~44Μm) range. Preparation of non-metallic vertical mill high fine mineral
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sodium EDTA as the chelating agent to form complexes with the metal impurities in the solutions calcium carbonate and unknown sample. Complexes will form from sodium EDTA reacting with impurities because each element from disodium EDTA carboxylic acid groups will donate an electron pair to the metal impurities ion center. ammonia/ammonium chloride buffer used in today’s lab will reassure calcium metal ions and metal ions in unknown water sample remain in solution being determined for accurate
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the ions in the acids react with the calcium ions in limescale to then form a soluble salt. The acids also react with the carbonates in lime scale to produce water and carbon dioxide. Then the whole solution washes out taking away as much lime scale and possible. Sulfamic acid The advantages of using sulfamic acid as a de-scaler are that it is the faster de-scaler which means it can give a greater concentration of atoms that are able to react with the calcium in lime scale. It is also safe to use
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cave but the good news are that people say that they bring good luck and they are called “cave kisses”. Most of the caves in the world have the same kind of minerals and Timpanogos Cave System is one of them‚ they are carbonate minerals in all of them but the kind of carbonates that we find in this particular cave system are calcite and aragonite which means that they have different structures but
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• This means that there is an increased area for the reactant particles to collide with. • The smaller the pieces‚ the larger the surface area. This means more collisions and a greater chance of reaction. • Marble chips are made of calcium carbonate. They react with hydrochloric acid to produce carbon dioxide. • The effect of increasing surface area on the rate of reaction can be measured by comparing how quickly the mass of the reactants decreases using marble chips of different sizes
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rock‚ a form of sedimentary rock composed of mineral calcite. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite plates shed belonging to the division of haptophytes. They function as a special calcium carbonate. In this investigatory project‚ we study the effectiveness of eggshells as an alternative ingredient in chalk production. The study is very efficient in these days because many people are in need of chalk. The components of chalk are so complex
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b) scurvy c) anemia d) night blindness 6.Which one of the following is reducing sugar? a) glucose b) maltose c) sucrose d) starch 7.Buildings are being damaged by acid rain because it attacks a) Calcium sulphate b) Calcium nitrate c) Calcium carbonate d) Calcium oxalate 8.Which one of the following salts makes water permanently hard a) Na CO b) NaHCo c) Ca(HCO ) d) CaSO 9.Concentration of the copper one is carried out by a) calcination b) roasting c) froth
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