CH 125 INORGANIC CHEMISTRY FOR MICROBIOLOGY Laboratory Manual 2013 Edition By Brian Clark‚ Marco Castillo & Patrick Chan CENTENNIAL COLLEGE OF APPLIED ARTS & TECHNOLOGY‚ SCARBOROUGH‚ ONTARIO Preliminary Laboratory Information - CH 125 The following safety information is provided to the student in order to ensure that all students and college staff working in the laboratory are aware of common industrial laboratory safety practices. Laboratory
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EXPERIMENT NO. 4 Chemical Equilibrium Claver‚ L. Z. X. Y.1‚ Palad‚ C. C.2‚ Rocha‚ R. D. P3 1Anthropology Department‚ College of Social Sciences and Philosophy‚ 2National Institute of Geological Sciences‚ College of Science‚ 3Department of Food Science and Nutrition‚ College of Home Economics‚ University of the Philippines‚ Diliman‚ Quezon City 1101 Philippines ------------------------------------------------- Keywords: forward and reverse reactions‚ equilibrium constant‚ Le Chatelier’s Principle
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Chemistry Review (mid-term) 1. Use the equation for atomic mass to answer the following questions. (http://johnheilchem10.escuelacampoalegre.wikispaces.net/file/view/average+atomic+mass+calculations+-+3.pdf) 1. Argon has three naturally occurring isotopes: argon-36‚ argon-38‚ and argon-40. Based on argon’sreported atomic mass‚ which isotope do you think is the most abundant in nature? Explain. 2. Copper is made of two isotopes. Copper-63 is 69.17% abundant and it has a mass of 62.9296 amu.
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ARTICLE IN PRESS Minerals Engineering xxx (2005) xxx–xxx This article is also available online at: www.elsevier.com/locate/mineng Silver recovery from synthetic photographic and medical X-ray process effluents using activated carbon K.G. Adani‚ R.W. Barley *‚ R.D. Pascoe Camborne School of Mines‚ School of Geography‚ Archaeology and Earth Resources‚ University of Exeter‚ Tremough Campus‚ Treliever Road‚ Penryn‚ Cornwall TR10 9EZ‚ United Kingdom Received 29 April 2005; accepted 24 May 2005
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Chemical Reactions What is a Chemical Reaction? Types of Chemical Reactions Redox Reactions Nonredox Reactions Classifying Reactions What is a Chemical Reaction? A chemical reaction is a process in which the identity of at least one substance changes. A chemical equation represents the total chemical change that occurs in a chemical reaction using symbols and chemical formulas for the substances involved. Reactants are the substances that are changed and products are the substances that are
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Chemistry 12 Unit 3 - Solubility of Ionic Substances Chemistry 12 Review Sheet on Unit 3 Solubility of Ionic Substances 1. Identify each of the following as ionic or molecular substances: a) NaCl(aq) ........................................................___________________________________ b) CH 3COOH(aq) ..........................................___________________________________ c) CCl4(l) ...................................................___________________________________ d) HNO3(aq)
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CHEMISTRY PRACTICAL NOTES - SALT ANALYSIS S.No. | EXPERIMENT | OBSERVATION | INFERENCE | 1(a) | Noted the colour of the salt | BluePale greenGreenPale pinkColourless | May be Cu2+May be Fe2+May be Ni2+‚ Cu2+May be Mn2+Absence of Cu2+‚ Fe2+‚ Ni2+‚ Cu2+‚ Mn2+ | (b) | Noted the physical state of the salt | (i)Amorphous(ii)crystalline | May be CO32-May be Cl-‚ Br-‚ SO42-‚ NO3- | 2 | Action of heat:The given salt is heated in a dry test tube. | (i)Reddish brown vapours(ii)Crackling sound(iii)Yellow
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By adding AgNO3‚ a white precipitate was formed. According to data from week one NaCl had to be present because the other anions would have created a precipitate in a different color. After centrifuging and separating the sample we added BaCl2 which resulted in another
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Purpose: Unknown mixtures will be separated by means of chromatography in which the mixture will be passed in a solution through a medium leaving behind components of the mixture at different rates‚ therefore‚ different spots on the absorbing substance. This will help determine the identity of unknown mixtures. The spot colors on the strip of filter paper and the Rf values of the unknown samples will be compared to those of known samples. To find the position of the spots on the strip of paper‚ we
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CHM113 summer 2014 Name: __________________________ EXAM 4 SHOW YOUR WORK 1) Of the molecules below‚ the bond in __________ is the least polar. A) HBr B) HI C) HCl D) HF E) H2 2) Ethanol (C2H5OH) melts at -114°C. The enthalpy of fusion is 5.02 kJ/mol. The heat capacity of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K‚ respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -135°C to liquid ethanol at -50°C? A) 207.3 B) -12.7 C) 6.91 D) 4192 E)
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