Chemistry Review (mid-term) 1. Use the equation for atomic mass to answer the following questions. (http://johnheilchem10.escuelacampoalegre.wikispaces.net/file/view/average+atomic+mass+calculations+-+3.pdf) 1. Argon has three naturally occurring isotopes: argon-36‚ argon-38‚ and argon-40. Based on argon’sreported atomic mass‚ which isotope do you think is the most abundant in nature? Explain. 2. Copper is made of two isotopes. Copper-63 is 69.17% abundant and it has a mass of 62.9296 amu.
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Alternative Energy Alternative Energy Our environment is ever changing so it would only make sense that our climate will change also. Researchers believe that the changes in our climate are directly related to certain types of energy. Energy plays an important role in many aspects of our lives. For example‚ we use electricity for lighting‚ heating‚ and cooling. We use fuel for transportation‚ heating‚ and cooking. Our energy production and use are connected with many other aspects of modern
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Worked example from Tutorial 8 8.3 Three laboratories‚ A‚ B‚ and C‚ are used by food manufacturing companies for making nutrition analyses of their products. The following data are the fat contents (in grams) of the same weight of three similar types of peanut butter. | |Laboratory | |Peanut Butter |A |B |C |D | |Brand 1 |16
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December 5‚ 2001 Alternatives to incarceration Ever since the first prison opened in the United States in 1790‚ incarceration has been the center of the nation’s criminal justice system. Over this 200 year period many creative alternatives to incarceration have been tried‚ and many at a much lower cost than imprisonment. It wasn’t until the late 1980’s when our criminal justice systems across the country began experiencing a problem with overcrowding of facilities. This problem forced lawmakers
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DEPARTMENT OF CHEMISTRY COURSE TITLE: General Organic Chemistry COURSE CODE: CHM 121 ‚ UNIT: 2.0 . INTRODUCTORY AND IMPORTANCE OF ORGANIC CHEMISTRY Organic chemistry is the study of the compounds of carbon. Carbon compounds are far more numerous than those of other elements because carbon are able to bond together to form a wide range of chains and rings. The subject is named organic chemistry because living organisms are composed of carbon compounds. Organic chemistry could be regarded
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First Ionisation energy is the measure of energy needed to remove a mole of electrons from a mole of gaseous atoms to form a mole of positively charged gaseous ions‚ also known as a cation. The general trend is that as the atomic number increases between elements Lithium to Neon the level of the first ionisation energy increases‚ as there is a stronger nuclear attraction. [Braid‚ K. et al. (2015)]. The stronger nuclear attraction along the period is caused by the number of protons increasing. When
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Chemistry GENERAL CHEMISTRY: Atomic Structure and elementary quantum mechanics: Blackbody radiation‚ Planck’s radiation law‚ photoelectric effect‚ Compton Effect‚ de Broglie’s hypothesis‚ Heisenberg’s uncertainty principle. Postulates of quantum mechanics‚ Schrodinger wave equation and a particle in a box‚ energy levels‚ wave functions and probability densities‚ Schrodinger wave equation for H-atom‚ Separation of variables‚ Radial and angular functions‚ hydrogen like wave functions‚ quantum numbers
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Alternative Tourism Introduction Due to advances in transportation and communication technology‚ an increase in disposable incomes and leisure times in Western Europe‚ North America (Choi & Sirakaya‚ 2006; Hall & Muller‚ 2005; Momsen‚ 2005; Mowfort & Munt‚ 2003; Smith‚ 2005)‚ North-East and South-East Asia‚ and the globalization of capitalism (Mowfort & Munt‚ 2003)‚ the tourism industry has grown to become the fourth largest economic sector globally‚ with 806 million tourist arrivals and international
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made my goal to ensure that I must become an expert in the field of laboratory science after graduating from high school. In my opinion‚ this was the best way to get answers to the many questions I had about blood cancer. I knew that achieving the required grade to study laboratory science meant I had to work very hard in high school. I graduated high school with flying colors‚ and I was all set to join university and study laboratory science. However‚ my father strongly rejected the idea of me studying
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Essay Medical Laboratory Technologist Do you ever wonder who tests your blood or diagnose disease? Medical Laboratory Technologists are one of the most important people when it comes to the health of a patient. Ever since I was a little I always wanted to be a doctor. After doing a little research on Medical Laboratory technologists‚ I think I might have had a change of heart; being a doctor seems much less interesting to me now that I know about the work of a Medical Laboratory technologist
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