Experiment 7 Gooch filter crucible or fritted-glass funnel Mother liquor- liquid from which a substance precipitates or crystallizes Filtrate- liquid that passes through the filter Slurry- suspension of solid in liquid Calcium ion can be analyzed by precipitation with oxalate in basic solution to form CaC2O4.H2O The precipitate is soluble in acidic solution because the oxalate anion is a weak base CaC2O4.H2O (calcium oxalate monohydrate ; MW = 146 g/mol) Equation: Ca2+(aq) + C2O42-(aq)
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as being more relatable at a human level‚ as opposed to an epic tale. Though‚ may I might add‚ the tale is still epic in a timeless sense‚ ‘Spearesy’ uses small-scale settings and conversations to say a thing or two about morality and its effect on life and lives. “ ‘Murder most foul‚ as in the best it is; but this most foul‚ strange’‚ ‘Haste me to know’t‚ that I‚ with wings as swift As meditation or the thoughts of love‚ May sweep to my revenge’ “. Now‚ Spearesy stays true to the conventional
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Calculations 1. Rounding Examples *0.1356 (4 significant figures) -> Round answer to 2 significant figures *0.1356 -> 0.14 *314.705 (6 significant figures) -> Round number to 4 significant figures. *314.705 -> 314.7 *0.0035771 (5 significant figures) -> Round to 3 significant figures. *0.0035771 -> 0.00358 *500‚000 (1 significant figure) -> Write this number to have 3 significant figures. *500‚000 - 5.00 x 10^5 *39.501 -> Round to 2 significant figures. *39‚501
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Chemistry and Society CHM/110 Xavier Villarreal November 6‚ 2011 Chemistry is a vast quantity of a person’s everyday life. A person can find chemistry in his or her daily life in the foods that a person eats‚ air a person breathes‚ soap‚ and accurately everything a person comes in contact with. Chemistry is significant in everyday life because chemicals make up everything in life. For example‚ a person’s body‚ pet‚ a desk‚ the sun‚ food‚ and drugs a person may take‚ to name a few. A person
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computers. Virtually‚ computers which pressure most people’s life are considered as the most important technological achievement of the XXI century. Using computers‚ we can make or solve most of difficult things which are hardly completed without their hands. Because of these different varieties of abilities‚ computers have been creating many noticeable achievements in most of societies’ fields especially medicine‚ education‚ and usual life. In other words‚ these three fields also are computers’ influences
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what I really think of his idea‚ he ’ll find a way to fire me. I ’m afraid that if I don ’t attend the parent meeting at school‚ they will think I ’m a bad parent. These are just a few of the fears that run through my mind. Sometimes I wonder what life would be like to just tell people what I really think of them‚ instead of staying silent because I ’m afraid of what they ’ll think. Sometimes I wonder who I ’d be if I weren ’t afraid of being something other than a wife and mother. I do what is expected
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Sustainable Chemistry Terry Collins* Chemistry has an important role to play in achieving a sustainable civilization on Earth. The present economy remains utterly dependent on a massive inward flow of natural resources that includes vast amounts of nonrenewables. This is followed by a reverse flow of economically spent matter back to the ecosphere. Chemical sustainability problems are determined largely by these economy-ecosphere materials flows (see the figure‚ below)‚ which current chemistry education
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A day in the life of a Project Manager - 1 I start off my day by going through emails and adding to my to-do list. I then go to see the creative teams‚ designers and studio to brief them and make sure they have all the bits they need to get on with the day’s work. (Tick things off my to-do list.) The account team and I have a status meeting on all the projects we have on the go. (Add a few bits to my to-do list.) I remind the teams that we have a briefing tomorrow and that they need to get the brief
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Chemistry of Enamel Stephanie Gabrielle Estrada Texas A&M University- Corpus Christi Chemistry of Enamel Dentistry is a branch of medicine‚ in order to understand medicine including diseases related to the mouth‚ one must have a background knowledge over the chemistry of the enamel and how it interacts and takes place with compounds that are used in crowns‚ veneers and fillings. Enamel consists of approximately 96% inorganic minerals and 4% organic material. These inorganic components
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12U Equilibrium Unit Test Multiple Choice K/U Identify the letter of the choice that best completes the statement or answers the question. ____ 1. When solid lead(II) phosphate is in equilibrium with its ions‚ the ratio of lead(II) ions to phosphate ions is which of the following? a. 1:1 d. 2:3 b. 1:2 e. 3:2 c. 2:1 ____ 2. In a saturated solution of silver phosphate‚ the concentration of silver ion is 4.5 10-4 mol/L. The Ksp of silver phosphate would be which of the following
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