Math Practice Lab Pre-Lab Questions: 1. The rules concerning handling significant figures are as follows: When dividing/multiplying The answer has no more significant digits than the number with the fewest significant digits (the least precise figure). Round off after calculations have been performed. When adding/subtracting Answer has no more places than the addend‚ minuend‚ or subtrahend with the fewest number of decimal places. Significant figures are irrelevant when adding/subtracting
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Title: Observations of Chemical Changes Purpose: To learn about the international system of units (SI)‚ to become familiar with common lab equipment and techniques‚ to gain proficiency in determining volume‚ mass‚ length‚ and temperature of a variety of items using common laboratory measurement devices‚ to learn to combine units to determine density and concentration‚ and to use laboratory equipment to create serial dilutions and determine the density and concentration of each dilution. Procedure:
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Benzil Reduction Introduction The objective of the experiment was to reduce Benzil‚ using sodium borohyride as the reducing agent. In a benzil reduction‚ there are five possible products than can occur‚ specifically a racemic mixture of benzoin‚ racemic mixture of hydrobenzoin‚ or meso-hydrobenzoin. Therefore‚ three different tests were conducted in determining the identity of the product: melting point‚ thin light chromatography‚ and infrared spectroscopy. (a) Mechanism and reaction equation
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the international poverty line include; – Guatemala‚ – Guinea-Bissau‚ – India‚ – Kenya‚ – Lesotho‚ – Madagascar‚ – Nepal‚ – Niger‚ – Senegal‚ – and Zambia • Analysts have found a strong positive relationship between economic growth and poverty reduction. • For example‚ East Asia (excluding China)‚which contains the world’s fastest-growing economies‚ reduced the share of its population living in poverty from 23 percent in 1987 to less than 14 percent in 1993. But in Sub-Saharan Africa‚ where negative
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Mohammed N. M. Sayan ESL 0405 ESL Advanced Writing Date: February 13th‚ 2013 Dr. J. Parla Palumbo Topic: Crime Reduction Title: What can I do to reduce crime? Thousands of crimes happen all over the world and increase exponentially every year. According to Nations Master’s website‚ more than twelve million crimes committed in the United states last year. "Crime statistics." nationmaster.com. Rapid Intelligence‚ 2002. Web. 25 February 2013. All of these crimes have happened due to high poverty
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Non-negative Matrix Factorization Based Noise Reduction for Noise Robust Automatic Speech Recognition Seon Man Kim1‚ Ji Hun Park1‚ Hong Kook Kim1‚*‚ Sung Joo Lee2‚ and Yun Keun Lee2 1 School of Information and Communications Gwangju Institute of Science and Technology‚ Gwangju 500-712‚ Korea {kobem30002‚jh_park‚hongkook}@gist.ac.kr 2 Speech/Language Information Research Center Electronics and Telecommunications Research Institute‚ Daejeon 305-700‚ Korea {lee1862‚yklee}@etri.re.kr Abstract
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Harm Reduction Harm reduction practices are based on various policies that are aimed to reduce harm for abusers and risk takers. Harm reduction means to lower the sentence for drug abusers and give them some sort of rehab and effectively help them and get rid of their addiction. Harm reduction should be active in Canada due to the fact that it has previously been used on other countries and have been successful. The War on drugs is pointless and it wastes billions of tax dollars with no positive
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org/2012/10/access-to-simple-technologies-can-reduce-poverty/ 2. International LabourOrganisation (2013) Skills training for poverty reduction. Retrieved from: http://www.ilo.org/skills/areas/skills-training-for-poverty-reduction/lang--en/index.htm 3. City & Guiding Centre for skills development (2010) Skills development and poverty reduction: How can skills development contribute to poverty reduction? Retrieved from: http://skills%20Development%20&%20Poverty%20Reduction 4. Department for international development
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John Heger CMY 211 Lab Section 13 11-30-2011 Borohydride Reduction of Vanillin to Vanillyl Alcohol Introduction: The purpose of this lab was to reduce vanillin to vanillyl alcohol. This lab report recaps the procedure and results of the lab. The chemical process studied in this lab was reduction‚ the process of reducing the number of bonds to oxygen and increasing the number of bonds to hydrogen. Other chemical processes included in the lab were recrystallization‚ melting point‚ and extraction
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Abstract: The purpose of this experiment is to examine the properties of several gasses‚ which were the products of a reaction‚ and examine the way the gasses react under certain conditions. These conditions‚ such as introducing a flame to the gas as well as oxygen and CO2‚ caused other reactions to occur. Hypothesis: If the gasses are correctly synthesized then there will be a clear reaction with the introduction of the flame‚ O2‚ CO2‚ Air‚ limewater‚ and Bromthymol indicator. Procedures: Step 1. I
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