Aqueous Acid/Base Chemistry Resources: Harris ‘Quantitative Chemical Analysis’ Review: Pure water has a pH = 7 Autodissociation: H2O (( H3O+ + OH- K = [H3O+][OH-]/[H2O] -log[H3O+] = 7 [H3O+] = 10-7 M = [OH-] [H2O] = 55.56 M K = 1.8 x 10-16 ; pKa = 15.74 pKa is the acid dissociation constant; low pKa (strong acid‚ high pKa (weak acid we can also write Kw = [H3O+][OH-] Kw = 10-14 In water‚ pH + pOH = 14 pH scale Strong
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Masters of Money A c ase study Submitted by: Anushri 2012PGP057 Nishanth 2012PGP108 Piyush 2012PGP077 Raghuveer 2012PGP067 Sukhada Vijendra 2012PGP089 2012PGP109 Vikash 2012PGP110 Masters of money Masters of Money is a short TV series produced by BBC about three men whom it referred to as masters of money: Karl Marx‚ Friedrich Hayek and John Maynard Keynes. M asters of Money - P art I – J ohn Keynes The first in the series is about John Maynard Keynes (1883-1946)
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BASE ISOLATED BUILDINGS What is base isolation? When a building is built away (isolated) from the ground‚ resting on flexible bearings or pads known as base isolators. It is of the most popular means of protecting a structure against earthquake forces. HISTORY The first evidence of architects using the principle of base isolation for earthquake protection was discovered in Pasargadae. One of the world’s first base-isolated structures – the William Clayton building Base Isolation
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Title: Acids‚ Bases & Buffers Objectives: 1. To understand the acid-base chemistry. 2. To prepare and evaluate a buffer system 3. To measure the buffering capacity of two types of isotonic drinks. Introduction: There are acid-forming‚ basic forming and neutral food‚ however the acid or alkaline properties of a food is unable to judge by the actual acidity of the food itself. For example‚ citrus fruits such as lemon are acidic‚ but they are alkaline-forming when we consume and digest it. Therefore
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and Technology International Journal of Social‚ Education‚ Economics and Management Engineering Vol:7‚ No:12‚ 2013 The Link between Money Market and Economic Growth in Nigeria: Vector Error Correction Model Approach Ehigiamusoe‚ Uyi Kizito International Science Index Vol:7‚ No:12‚ 2013 waset.org/Publication/9996702 Abstract—The paper examines the impact of money market on economic growth in Nigeria using data for the period 1980-2012. Econometrics techniques such as Ordinary Least Squares Method
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Five Bases of Power Claudette Irizarry BCOM230 November 19‚ 2012 Katalin Ogle Five Bases of Power There are five bases of power that may be used in a professional environment. Referent power‚ coercive power‚ legitimate power‚ reward power and expert power. Each one of these different types of power is used in different ways to reach the same result. Some forms of power are personal and some are formal. In my professional career I have used at least three of these types of power. Referent
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The acid-base titration curves help to find the pKa‚ Ka‚ and pH at equivalent point. At the beginning pH for HCl is 1.90 which is lower than the 3.28 for acetic acid; thus‚ strong acid (HCl) means lower pH and weak acid (acetic acid) means higher pH. Then at the equivalent point for the titration HCl-NaOH the pH is 7‚ which mans that is neutral‚ in other words there are enough NaOH mmol to neutralize the HCl mmol present; also‚ the solution contains only water and NaCl the salt derived from the titration
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hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh Case- Harrah’s Entertainment Inc. Questions: 1. What are the objectives of the various Data Base marketing programs and are they working? 2. Why is it important to use the “customer worth” in the DBM efforts rather than observed level of play? 3. How does Harrah’s integrate the various elements of its marketing strategy to deliver more than the results of Data Base marketing? 4. What is the sustainability of Harrah’s actions and strategy? 5. What are the privacy and ethical
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The Five Bases of Power The working environment contains different relationships. These relationships start from the Chief Executive Officer (CEO) and trickles down to the basic manager employee functionality. Most relationships in the workplace are built through trust; however‚ trust is built through an entity of power. Power in the workplace can be an influential tool‚ but can be mislead as an entity of possessing complete control (Busch‚ 2008). Fortunately‚ when using power properly‚ it
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Title: ACID BASE TITRATION. Objectives: 1. To determine the concentration of acid using titration. 2. Skills of titration techniques. Apparatus: 1. 250 volumetric flask 2. 10mL measuring cylinder 3. 25mL pipette 4. 50mL burette 5. 250mL beaker 6. 150mL conical flask 7. Retord stand 8. White tile 9. Stopwatch 10. Pipette bulb Chemicals: 1. HCl solution 2. 0.1M NaOH solution 3. H2SO4 solution 4. Distilled water 5. phenolphthalein Introduction
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