The poem harmonium examines the relationship of a father and son. I think Armitage has written this poem for parents and children as they would be able to relate to the emotions in the poem. The Author uses the Farrand Chappelette which is a type of Harmonium or small organ to help him reflect the love that he has for his father. In the first stanza the poet talks about the Farrand Chappelette which was “gathering dust” telling us that it is getting old and it was due to be taken to the skip if Armitage
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Water hardness is a measure of the amount of calcium and magnesium carbonate dissolved as Ca 2+ and Mg 2+ in water. There are no health hazards associated with water hardness‚ however‚ it causes scaling‚ as well as forming of soap suds. Compleximetric titration is one of the best ways of measuring total water hardness using a standard ethylenediaminetetraacetic acid (EDTA) solution. EDTA solution is used as it has the ability to easily bind with calcium and magnesium ions. EDTA and Ca2+ react at the
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Advantages: Sulfamic acid is the fastest de-scaler - It dissociates into hydroxonium ions more readily in aqueous solution than the others‚ therefore giving a greater concentration of atoms that are able to react with the calcium in lime scale. It is safe to use because it does not produce chlorine gas [5]‚ which can be toxic. Sulfamic acid also has a low volatility. Disadvantages: Sulfamic Acid can be an irritant to eyes or skin and is the most expensive of the de-scalers. Q2) How these de-scalers
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Table of Contents: CHAPTER I: Introduction . . . . . . . . . . . . . . . . . . . . . . .i Statement of the problem . . . . . . . . . . . ii Hypothesis . . . . . . . . . . . . . . . . . . . . . . . . iii Scope and limitation . . . . . . . . . . . . . . . iv Definition of terms . . . . . . . . . . . . . . . . . v CHAPTER II:RRL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi CHAPTER III:Methodology . . . . . . . . . . . . . . . . . . . . . . vii CHAPTER IV:Results
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which is thick. This allows the egg to “bounce.” How does it work? Egg shell is made of calcium carbonate. Vinegar is an acid - acetic acid. When calcium carbonate is exposed to an acid it reacts. The calcium carbonate egg shell dissolves‚ but the membrane inside the shell‚ surrounding the egg‚ remains intact. This makes the egg feel rubbery. Not only does the vinegar dissolve the calcium carbonate shell‚ but it also fills the egg with water‚ by a process called osmosis. Since the concentration
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Displacement. B.) Calcium Carbide and Water‚ my hypothesis is a Double Displacement. C.) Zinc and Hydrochloric Acid‚ my hypothesis is a Single Displacement. D.) Alcohol and Oxygen‚ my hypothesis is a Combustion. E.) Lead (II) Nitrate and Potassium Iodide‚ my hypothesis a Double displacement. F.) Copper and oxygen‚ my hypothesis is a synthesis. G Magnesium and oxygen‚ my hypothesis is a synthesis. H.) Acetic acid and Sodium bicarbonate‚ my hypothesis is a double displacement. I.) Copper (II) carbonate and Hydrochloric
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Na2CO3 __0.72__g Net mass of the Na2CO3 ___0.12_g Step 6: Mass of filter paper __1.0__g Step 10: Mass of filter paper and dry calcium carbonate __1.7__g Net mass of the dry calcium carbonate ___0.7_g (This is the actual yield) Step 11: Show the calculation of the theoretical yield of calcium carbonate. .0068 mol of CaCO3 *100.06 g CaCO3/1mol of CaCO3 =.6804 g of CaCO3 Show the calculation of the percent yield. (Actual yield/theoretical yield)*100
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types of hardness and alkalinity found in the water by titration methods. This is used to calculate the concentrations of calcium and magnesium found in the water. Principles: The hardness of water is determined to provide a measure of the quality of water for household and industrial use. Hard water is not a health hazard. Drinking hard water contributes a small amount of calcium and magnesium towards humans dietary needs. Hard water is caused by metal ions (salts) being dissolved in the ground
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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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system to prevent corrosion b. Add minerals that are essential to human dietary needs. c. To facilitate the secondary use of the desalinated water‚ for example‚ irrigation. Dosages of 60 to 120 mg/L as CaCO3 of calcium containing chemicals like lime‚ calcite‚ calcium‚ hypochlorite‚ or calcium and magnesium containing chemicals like dolomite are added to the desalinated water. this is important for the water distribution
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