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 high
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UNKNOWN SAMPLE #97 COMPLEXOMETRIC DETERMINATION OF WATER HARDNESS DR. BUDRUK CHM 152 LL SEAN MARKIS 4 FEBRUARY 2015 Introduction Using a Lewis base neutral molecule to donate electron pairs (ligands) to a Lewis acid metal ion center to form a single cluster (complex) ion. When the complex ions forms with a metal ion (chelation) the ligand used is called the (chelating agent). EDTA acts as a great chelating agent due to the Nitrogen and Oxygen donating an electron pair to the
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SIGNIFICANCE OF TITLE HARD TIMES was serialized in Dickens’ magazine HOUSEHOLD WORDS in the winter of 1853 -54. Before the publication of the novel‚ Dickens took great pain with the title of the book. He experimented with as many as 24 titles Like ’ According cooker the grindstone ’ ’ something tangible ’ ’ Rust and Dust’‚ ‘Hard Heads and Soft Hearts’ etc. Later on those whittled down to just four : ’ Two and Two are Four ’ ‚‘A matter of calculation’ ‚ ’ The Gradgrind philosophy ’ and ‘stubborn
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collisions tapered off the earth‚ it began to cool‚ forming a thin crust on its surface. As the cooling continued‚ water vapor began to escape and condense in the earth’s early atmosphere. Clouds formed and storms raged‚ raining more and more water down on the primitive earth‚ cooling the surface further until it was flooded with water‚ forming the seas. Today the earth is full of life and water and rain there is no longer molten rocks flowing and there is no dangerous vapor in the clouds‚ today earth is
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Dickens’ Hard Times “Now‚ what I want is‚ Facts. Teach these boys and girls nothing but Facts. Facts alone are wanted in life.” (Dickens‚ 1854‚ p.1) With these beginning sentences of the novel “Hard Times”‚ Charles Dickens has made readers doubt whether it is true that facts alone are wanted in life. This question leads to the main theme of the story‚ fact against fancy‚ that author has never been written this kind of plot in his other stories before. In fact‚ Hard Times is considered as "the
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WATER OUR LIFELINE Water is a transparent fluid which forms the world’s streams‚ lakes‚ oceans and rain‚ and is the major constituent of the fluids of living things. As a chemical compound‚ a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. Water covers 71% of the Earth’s surface.[1] It is vital for all known forms of life. On Earth‚ 96.5% of the planet’s water is found in seas and oceans‚ 1.7% in groundwater‚ 1.7% in glaciers and the ice caps of Antarctica
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The shortest of Dickens’ novels‚ Hard Times‚ was also‚ until quite recently‚ the least regarded of them. The comedy is savagely and scornfully sardonic‚ to the virtual exclusion of the humour - that delighted apprehension of and rejoicing in idiosyncrasy and absurdity for their own sakes‚ which often cuts right across moral considerations and which we normally take for granted in Dickens. Then‚ too‚ the novel is curiously skeletal. There are four separate plots‚ or at least four separate centres
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Hard Times Essay When one thinks of a “fairy tale” story they think of the themes and characterization of any common “fairy tale” such as; good vs. evil‚ hero/heroin vs. evil villain‚ good triumphs evil and love conquers all‚ these are some of the obvious themes of any ”fairy tale” story. Many stories contain a “fairy tale” base or components. The novel Hard Times by Charles Dickens has been termed a “fairy tale” for the industrial revolution. Hard Times resembles a “fairy tale” story by expressing
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Dickens‚ Hard times The novel Hard Times by Charles Dickens presents the use of “flat or two-dimensional” characters which ultimately signifies a character that is lacking depth in their character and essentially maintains the same character portrayal throughout the novel. Dickens portrays this through the use of placing his characters’ names with their dominant personality trait. For example the character of Bounderby who is identified as a banker in the novel; by definition means “a morally reprehensible
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Hard Times Coursework Hard times was written in 1854 by Charles Dickens. Dickens was a famous Victorian novelist who wrote about the civilization that surrounded him. He was knowledgeable and middle-class but had some sympathy with the way poor people were treated. He was vital of utilitarianism and felt that those in power showed little understanding of the poor. His sympathy with the poor stemmed from his upbringing and his father’s failure to stay out of debt. Hard Times is Dickens’ shortest
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