Determination of Chemical Formulae: The Reaction of Zinc and Iodine By Sarah Abstract: The main objective of this experiment was to use to the reaction between zinc and iodine to examine the validity of the Law of Conservation of Mass and the Law of Constant Composition. The Law of Constant Composition was tested by determining the mass of each of the reactants‚ zinc and iodine‚ and comparing their total to the mass of the zinc iodide product plus the excess zinc. The total mass of the reactants
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Chemical disaster at Jaipur occurred on 29th October 2009 at 7:36 PM (IST). Fire broke out at Jaipur fuel storage and distribution terminal‚ owned by the Indian Oil Corporation (IOC) - India’s largest oil company and PSU in terms of revenue at Sitapura Industrial Area on the outskirts of Jaipur‚ Rajasthan. The oil depot at Sitapura Industrial Area is about 16 kilometers away from the city of Jaipur. The Met department recorded a tremor measuring 2.3 on the Richter scale around the time the first
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Objectives 1. To recognize the macroscopic properties of five chemical systems at equilibrium 2. To observe shifts in equilibrium concentrations as stresses are applied to the systems. 3. To observe a shift in equilibrium concentrations associated with changes in temperature. 4. To explain the observations obtained by applying Le Chatelier’s principle. Materials Refer to page 209 of Heath Chemistry Laboratory Experiments. Procedure Refer to pages 209 – 211 of Heath Chemistry
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world face the same problems. One of them is poor housing. People often live in old houses or huts that don’t have electricity or sanitation. As city population grows governments don’t have the money to build modern apartment buildings. Cars and industries are polluting city air and rivers more and more. Waste that people throw away is burned or ends up in landfills. All of this makes modern cities an unhealthy place to live in. Especially during morning and evening rush hours cities become packed
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Chemical equilibrium is the point at which the concentrations of reactants and products do not change with time. It would appear as if the reaction has stopped‚ but in fact‚ the rates of the forward and reverse reactions are equal‚ causing the reactants and products to be created at the same rate. This can be expressed mathematically in the form of the equilibrium constant. The following is the general equation for a reversible chemical reaction: aA+bB →cC+dD
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The Grayson Chemical Company I. Problems A. Macro 1. Grayson has become stagnant‚ failed to change‚ and is no longer competitive. 2. The current people at Grayson are not acceptable to change. 3. There is a culture of doing things by the book. B. Micro 1. Incompetent managers promoted. 2. Board does not have a consensus of opinion. II. Causes 1. Grayson has not been proactive with its environment. 2. Corporate culture is very resistant to change. 3. Board does not speak with one
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r Lab Report 5 Introduction to the Classes of Chemical Reactions Course: Chem. 1151L‚ Tuesday & Thursday June 23‚ 2011 Mr. Nasir Uddin Pre Lab Questions: 1. CaBr2 (aq) + K3PO4 (aq) → CA(PO4)2(S) + KBr (aq) = Ca3(PO4)2 + 6 KBr Double Replacement 2. Li(s) + O2(g) = Li2O(s) =2 Li2O Decomposition 3. CH4 + O2 = CO2 + H2O = CO2 + 2 H2O Combination 4. AgBr(s) = Ag (s) + Br2(l) = 2 Ag + Br2 Combination 5. Mg(s) + H2SO4 (aq) = MgSO4 + H2
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optimism that both the world economy and the banking industry are recovering from the impact of the financial crisis. But it is equally clear that the financial world has changed permanently‚ both in terms of who holds the balance of power within global industry and how banks will be allowed to operate in future. Issues faced by Indian Financial / banking sector: Issue 1-Issue of consolidation - It is the current buzzword in the banking industry worldwide. The largest bank in China with an asset
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32 48 13 32 48 14 32 48 Ratio: 48:32=6:4=3:2=1.5 Conclusion: Answer the following questions in complete sentences‚ giving detailed explanations and support for each of your answers. 1. Explain in your own words what it means for a chemical system to be in the state of dynamic equilibrium. After a reaction has occurred for awhile at a given temperature‚ the forward and reverse reaction rate will eventually be equal. Although you may get this confused‚ the concentration may not be
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Biology Notes : Chapter 2 : Organic chemical compounds include : Saccharides‚ Proteins‚ lipids and nucleic acid. Functions of water are : Acts as a solvent For excretion of metabolites Acts as medium of transport For supporting and maintaining of shapes Acts as a medium to carry out biochemical reactions. Helps in lubrication Maintains body temperature Has high tension and cohesion Provides moisture Maintains osmoic balance and turgidity Saccharides : (a.k.a Carbohydrates)
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