Calculations 1. Rounding Examples *0.1356 (4 significant figures) -> Round answer to 2 significant figures *0.1356 -> 0.14 *314.705 (6 significant figures) -> Round number to 4 significant figures. *314.705 -> 314.7 *0.0035771 (5 significant figures) -> Round to 3 significant figures. *0.0035771 -> 0.00358 *500‚000 (1 significant figure) -> Write this number to have 3 significant figures. *500‚000 - 5.00 x 10^5 *39.501 -> Round to 2 significant figures. *39‚501
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CHE 242 Tutorial 3: Problems & Answers Week 4: Feb 2- 6‚ 2009 1. Consider a gas that occupies 1.00 dm3 at a pressure of 2.00 bar. If the gas is compressed isothermally at constant external pressure‚ Pext‚ so that the final volume is 0.500 dm3‚ what is the smallest value Pext can have? Calculate the work involved using this value of Pext. Solution For compression to occur‚ the value of Pext must be at least as large as the final pressure of the gas. P1 = 2.00 bar‚ V1 = 1.00 dm3‚ V2 = 0.500
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~Fulfilling ethical values and islamic virtues~ * Ethics known as moral philosophy‚define ethics as "a set of concepts and principles that guide us in determining what behavior helps or harms sentient creatures. * Virtue is moral excellence. A virtue is a positive trait or quality deemed to be morally good and thus is valued as a foundation of principle and good moral being. Personal virtues are characteristics valued as promoting collective and individual greatness. This has been mention
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Baking Project There are several chemical reactions taking place in the general baking of cakes. Every ingredient has its own function and causes a different reaction Synthesis: * Egg yolks (modify molecule’s structure) helps the oil-based and water-based components of the cake mix together. When eggs are cooked‚ the protein molecules become uncurled when exposed to heat and create new molecular bonds with other nearby protein molecules. When the egg is completely cooked‚ it helps form a
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INTRODUCTION Human Resources Management Issues- ‘People are our greatest asset’ is a mantra that companies have been chanting for years. But only a few companies have started putting Human Resources Management (HRM) systems in place that support this philosophy. There are a number of challenges in the Indian industry which require the serious
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The Abuse of Welfare Welfare was established by the Social Security Act of 1935 to help poverty toward children and other dependent people in need of assistance. Money paid by the government to those who are in need of financial assistance‚ or who are just unable to work because of physical or health reasons. This program helped many people in the Great Depression and still helps families to survive today. The program was invented to help families reenter society‚ and not for people to entirely
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Alsobrook 1 ENGL 1010-40E 23 September 2013 Welfare Moms Years ago when someone asked me what welfare was my answer was always negative. I grew up in a small southern town where most of the population was either wealthy or retired families. If someone was on welfare or living off the government as it was referred to was looked down upon and made fun of. Single mothers that were on government assistance were called “welfare moms.” These women were labeled as lazy and good for nothing
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Sustainable Chemistry Terry Collins* Chemistry has an important role to play in achieving a sustainable civilization on Earth. The present economy remains utterly dependent on a massive inward flow of natural resources that includes vast amounts of nonrenewables. This is followed by a reverse flow of economically spent matter back to the ecosphere. Chemical sustainability problems are determined largely by these economy-ecosphere materials flows (see the figure‚ below)‚ which current chemistry education
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Ideologies of Welfare For hundreds of years the health and general wellbeing of people and their families have suffered due to the difficulties that social policy and welfare provision has been continuously faced with as a result of the persistence of poverty. This essay will explain and discuss the ideologies of the major political parties‚ how they have influenced the development of welfare and the effects they have had on social policies and social care provisions. It will explain how these ideologies
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05 November 2013 Literature Review: Nuclear Chemistry and its Effects on the World In today’s society‚ nuclear chemistry is becoming more and more common and is being used in a variety of ways including for weapons and the medical field but the significance of this type of chemistry is its impact and what it has contributed to the world. Nuclear chemistry is the branch of chemistry concerned with nuclear reactions‚ radioactive substances and is the study of the chemical and physical properties
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