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    Oxygen Requirements of Bacteria BACKGROUND  The GasPak system is useful for culturing anaerobic bacteria on standard microbiological media because the GasPak generates carbon dioxide and hydrogen. The hydrogen will combine with oxygen present in an anaerobic jar to produce water. This system can reproducibly attain oxygen levels in the parts per million range if used correctly. This is the best method for determining the oxygen requirements of unknown organisms.  A candle jar is useful

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    Chemical Formulas

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    * Chemical Formulas and Reactions . . . Midterm Objectives: * To balance chemical equations. * To interpret chemical reactions. * To understand equilibrium reactions and the factors that can affect them. * Molecular Mass / Formula Mass * Is the sum of the atomic masses of all the atoms present in one molecule of that compound. Example: the molecular mass of sodium bromide‚ NaBr‚ is 103‚ which represents the sum of the atomic mass of sodium (23) plus that of bromide (80)

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    Empirical Formula

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    Average Crucible’s weight with Mg = Mass of Oxygen. Average = 28.85 – 28.80 = 0.05g. The average mass of Oxygen that was used is 0.05 grams. To find the mass of Magnesium Oxide that was formed during the experiment: Average mass of Mg+ Average Mass of O2 = Mass of Magnesium Oxide 0.11g + 0.05g = 0.16g The mass of Magnesium Oxide formed in this experiment is 0.16 grams. Bar graph: The Magnesium’s increase in mass after the experiment. The bar graph shows an increase of mass of the Magnesium

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    Pisio9

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    Exercise 4: Endocrine System Physiology: Activity 1: Metabolism and Thyroid Hormone Lab Report Pre-lab Quiz Results You scored 33% by answering 2 out of 6 questions correctly. 1. Which of the following statements about metabolism is false? You correctly answered: d. All of the energy from metabolism is ultimately stored in the chemical bonds of ATP. 2. Thyroxine is Your answer : b. secreted by the thyrotropin gland‚ located in the neck.. Correct answer: c. the most important hormone for maintaining

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    2 9 13 Thermochemistry

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    H2(g) + ½ O2(g)  H2O(g) ΔH = 241.8 kJ (a) Sketch the energy profile diagram of the above reaction. (b) Which enthalpy is larger‚ that of the reactants or the product? (c) For the reaction‚ 2H2O(g)  2H2(g) + O2(g) what is the enthalpy change under the same conditions? 4. (a) The following reaction occurs at room temperature and pressure: 2Cl(g)  Cl2(g) ΔH = -ve State which has higher enthalpy under this condition‚ Cl(g) or Cl2(g)? 5. From the following data‚ 2Fe(s) + 3 2 O2(g) ΔHf

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    beginning of a term in a chemical equation. It indicates the number of molecules or atoms that were involved in the chemical reaction. 1. H2 + Br2 -----> 2HBr 2. Potassium Chlorate ----> Potassium Chloride + Oxygen = KClO3 ------> KCl + O2 KClO3 ------> KCl + O2 Balanced = 2KClO3 ------> 2KCl + 3O2 3. FeCl3 + 3NaOH = Fe(OH)3 + 3NaCl 4. Zn (s) + H2SO4 (aq) = ZnSO4 (aq) + H2 (g) 5. CuS + HNO3 -> CuSO4 + H2O + N2O CuS + 2 HNO3 -> CuSO4 + H2O + N2O Chemical Reaction is a process that

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    Penang Mutiara Case Study

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    1. Introduction Penang Mutiara is made up of a 285 sq km island and a 760 sq km strip of coastal land strategically located on the north-western coast of Peninsular Malaysia. Penang Island is linked to Province Wellesley on the mainland by the Penang Bridge and a 24-hour ferry service. The island derived its name from the betel nut palm commonly grown here. While Mutiara is the literal Malay translation of “Pearl of the Orient”. Heralded as one of the most luxurious hotels in South-East Asia.

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    Coupled Reactions

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    Coupled Reactions ABSTRACT A way to drive a non-spontaneous reaction forward is by coupling it with another reaction that is highly spontaneous‚ resulting to a spontaneous overall reaction. In this study‚ since the extraction of C(s) from CO2(s) is a non-spontaneous process‚ it was coupled with the oxide formation reaction of Mg‚ a reaction with high spontaneity‚ so that the process of the extraction of C(s) would proceed. The reactions and products which were a mix of black and white

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    The Respiratory System: Gas Exchange 1. The atmosphere is a mixture of gases. Write down the percentages for: a. O2 _____21%______ b. CO2 ____0.04%_______ c. N2 _____78%______ d. H2O _____0.46%______ 2. Calculate the partial pressures of the following gases at both atmospheric pressures: 760 mmHg 747 mmHg a. O2 __159.6mmHg_________ ____156.9mmHg_______ b. CO2 ___.3mmHg________ _____.3mmHg______ c. N2 ____597mmHg_______ ______587mmHg_____

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    Enterprise development plan

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    tourism enterprise/business and essentially create a proposal including a written business and marketing plan for the tourism enterprise. The authors have decided on the business plan of creating a Package Tour programme with an office situated in Dublin alongside a website where tourists can see full details what is on offer‚ including pricing and contact details. There will also include an eye-catching mini brochure‚ which will briefly illustrate and explain what the company‚ “Drogheda Tours Ltd”

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