Buffer solutions and common ion effect A buffer solution resists (or buffers) a change in its pH. That is‚ we can add a small amount of an acid or base to a buffer solution and the pH will change very little. How to calculate pH of buffer solution containing both acid and conjugate base? Dissociation constant definition 1.1 can be rearranged into or (note that due to sign change [A-] was moved to nominator). This is so called Henderson-Hasselbalch equation (or buffer equation)
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Global Warming: Causes‚ Effects and Solutions "’The future is here. Greenhouse warming is no longer just a possibility‚ it is happening now‚’ said Dr. Michael Oppenheimer‚ a senior scientist with the Environmental Defense Fund" ("Greenhouse Warning"). Representatives from more than 160 countries met together in the first ten days of December this year to come to an agreement on a treaty to slow down global warming by setting the limits on the countries’ greenhouse gases emissions‚ which include
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AIR POLLUTION What is Air Pollution? Pollution is now a common place term‚ that our ears are attuned to. We hear about the various forms of pollution and read about it through the mass media. Air pollution is one such form that refers to the contamination of the air‚ irrespective of indoors or outside. A physical‚ biological or chemical alteration to the air in the atmosphere can be termed as pollution. It occurs when any harmful gases‚ dust‚ smoke enters into the atmosphere and makes it difficult
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OF CONTENTS INTRODUCTION 4 ENVIRONMENTAL MECHANISMS 4 BIOLOGICAL MECHANISMS 7 DISEASES & EPIDEMIOLOGY 9 LEGISLATION‚ POLICY‚ & RESEARCH 11 PREVENTATIVE MEASURES 13 CONCLUSION 15 REFERENCES 16 Radon Gas: Mechanisms‚ Effects‚ & Solutions Introduction Over 171‚000 new cases of lung cancer are diagnosed annually in the United States‚ and nearly 130‚000 people die of this disease every year. (Field‚ 2000) There is no other cancer that kills more often than this one‚ and what
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Is Functional Literacy a Prerequisite for Entering the Labor Market? An Analysis of the Determinants of Adult Literacy and Earnings in Ghana Niels-Hugo Blunch and Dorte Verner Working Paper 00-05 April 2000 Published by Centre for Labour Market and Social Research Universitetsparken‚ Building 350 8000Aarhus C‚ Denmark Editor: Peder J. Pedersen Copyrights: Niels-Hugo Blunch and Dorte Verner ISSN 0908-8962 Is Functional Literacy a Prerequisite for Entering the Labor Market? An Analysis of the
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Osmosis coursework Aim: To investigate the effect of different concentration of a sugar solution on the amount of osmotic activity between the solution and pear pieces of a given size. Define osmosis: Osmosis is a net movement of water/ solution molecules from a region of high concentrated area to a region of lower concentrated area through a semi-permeable membrane which lets smaller molecules such as water through but does not allot bigger molecules like glucose to pass through. The molecules
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Deforestation of the Amazon: Causes‚ Effects and Possible Solutions NAME Geography 101‚ Section 040 PROFESSOR 6 December 2012 Abstract This paper explores the causes‚ effects and possible solutions of the deforestation of the Amazon Forest. It is important to understand why more than 580‚000 square kilometers of Amazon forest has been destroyed in Brazil since 1980 (Rhett Butler 2012). The main topics of this paper‚ in order to fully explore the issue at hand‚ will include:
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CHAPTER 10 CRITICISMS OF ABSORPTION COST SYSTEMS: INCENTIVE TO OVER-PRODUCE P 10-1: Solution to Federal Mixing (10 minutes) [Explaining absorption versus variable costing] Variable costing writes off to income all fixed manufacturing costs incurred during the year. Absorption costing prorates the fixed overheads between units in inventory and units sold based on machine hours. Absorption costing net income is higher than under variable costing by $1.2 million. This means that inventories
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Institute (Indian Standard Organization(ISO) Certificate Number:2071-QMS-1071) Email id: hsbsolutions7@gmail.com website:www.hsbsolutions.jimdo.com Ph: 9210846949 / 9717925135 Physics: Chapter 2 Solutions Last 15 years questions with solutions Topic: Strength of Solution Q.1Discuss the effect of Temperature on Solubility of solids in Solvent. AnsThe solubility of solid in a liquid solvent generally increases with increase in temperature of the solvent. Very rarely some neutral salts like
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World Hunger: Problem‚ Causes‚ Effects‚ and Solutions In the world today‚ over 925 million people that are effected by hunger; that makes about 1 in 7 people in the world hungry‚ especially the rural poor‚ urban poor‚ and victims of catastrophic events. What is chronic hunger? It is being undernourished and being able to only eats the minimal amount of food that the body needs to survive. Chronic hunger means you do not know when your next meal will be eaten or how it will be procured. The Oxford
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