and industrial applications. Citric Acid is one of the organic acids commonly used as a chelating agent. It is considered an excellent chelating agent that binds metals. It is used to remove lime scale from boilers and evaporators. It can be used to soften water‚ which makes it useful in soaps and laundry detergents. By chelating the metals in hard water‚ it lets these cleaners produce foam and work better without need for water softening devices. Citric acid is the active ingredient in some bathroom
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Investigating the effects of acid rain in the growth of cress seedlings IntroductionAcid rain is rain or any other form of precipitation‚ which is unusually acidic. It has harmful effects on plants‚ animals and buildings. Acid rain is mostly caused by human emissions of sulphur and nitrogen compounds which react in the atmosphere to produce acids. Acid rain can slow the growth of vulnerable forests and cause leaves and needles to turn brown and fall off. In addition‚ it depletes minerals from the
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Christopher Flores March 8‚ 2011 Mr. Haile 1301.155 Exercise for the Body You know exercise is good for you -- but do you know how good? At its most basic‚ exercise is any type of physical exertion we perform in an effort to improve our health‚ shape our bodies‚ and boost performance (Waehner‚ Web). Adults‚ men and women‚ and teens both benefit from exercise and physical activity in many different ways. Exercise should play a key role in everyone’s daily life‚ not only does it boost self
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from the stressful environment that I endure every week. Whether it would be from work‚ school‚ or issues happening at home or around me‚ Exercising and going to the gym will help me clear my thoughts and keep my body physically in check. After I exercise‚ I find myself sleeping much easier with all the stress gone as my body becomes exhausted from the cardio workout that I have been doing. Exercising can be the cure of physical
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Acid Rain is a type of air pollution‚ which is formed when oxides of sulfur and nitrogen combine with atmospheric moisture to yield sulfuric and nitric acids‚ which may then be carried long distances from a source before they are deposited by rain. This pollution may also take the form of snow‚ fog‚ or a dry form of precipitation. Acid rain is currently a subject of great controversy because of widespread environmental damage‚ for which it has been blamed‚ including eroding structures‚ injuring crops
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The acid-fast stain is performed on samples to demonstrate the characteristic of acid fastness in certain bacteria. Acid fastness is a characteristic that is shared by just a few organisms‚ so staining to determine if organisms possess this trait is useful in microbial identification schemes. The Ziehl-Neelsen method has endured as a reliable and effective way to demonstrate the acid-fast bacteria. Materials: 18-20 nutrient hour agar slant culture of Staphyloccus aureus 4 day old nutrient
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Compiling a Data base for use in the Teaching of Statistics 2009-2010 Introduction With regards to the teaching of statistics‚ generally speaking the majority of undergraduate students tend to struggle when it comes to learning and applying course material. As illustrated by the Wason Selection Task we are better able to understand problems that we commonly encountered in the Pleistocene period of our biological evolution. This study set out to investigate
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Jarrett Sears Dr. Hummel Chem 121 2/7/13 A Chemical Reaction between Tin and Nitric Acid Introduction: Finding the products made from the components of tin metal and nitric acid is the ultimate objective of this lab; the formula of the products will be found in the CRC handbook thereafter. Procedure: First‚ obtain a clean crucible‚ and heat it under a Bunsen burner until it is as hot as possible‚ about 15 minutes within a fume hood unit. The Bunsen burner will be used under the fume
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Mabel M. Kimble September 21‚ 2014 Chemistry 234 Recrystallization of Benzoic Acid ABSTRACT The recrystallization of Benzoic Acid was performed to fully master the ability to purify a solid compound. This form of purification technique is especially important in chemical identification‚ where the melting point of the compound is taken to confirm its purity. In order to perform recrystallization a solubility test much be completed. Four solvents (95% Ethanol‚ Petroleum Ether‚ Acetone and distilled
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MASTER OF BUSINESS ADMINISTRATION LB5205: HUMAN RELATION AT THE WORK- PLACE | WORK- LIFE BALANCE | (Reflective journal) | | | | LECTURER: DR. LISA TOMBALAKIAN SUBMITTED BY: PHAM THU THUY- 12517827 INTRODUCTION WHAT DO I UNDERSTAND ABOUT WORK- LIFE BALANCE? After graduated from Hanoi National University ( one of the biggest university in Vietnam)‚ two months later‚ I was hired by a telecom company. At that time‚ there were already 3 telecom companies
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