Chemistry Coursework – Titration Background Science A titration is the neutralisation of an acid or an alkali. To achieve this‚ one must be added to the other in a specific amount‚ strength and concentration. A substance is neutral when its pH is 7. It is most acidic closer to 0 and is most alkaline closer to 14. 28492453194050 0 7 14 595423979670
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and have been the driving force in sustaining the life and insuring the survival of humanity. These four elements are four basic building blocks that allow man to not only function and live‚ but to further himself and develop into the dominant race on the planet. These four elements are four basic natural commodities that ensure the survival of the human race but when they are present at times where unnatural things take place‚ they can take life away. War is not natural. At times of war‚ everything
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superiority complexity comes in between professionals. One person thinks why he/she is not given the importance that other person is getting even if he/she is more efficient. There are cases where the low level officer knows more than the senior officer and because of that he/she doesn’t accept the ideas given by the low level officer. Another example is when a more educated person is given less importance in a function than a less educated but powerful person. There are many examples where ego is displayed
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I Term Exam Chemistry Project Sunday‚ January 13‚ 2013 Grade/Section: Date: Question I: State whether each statement is true or false‚ then correct each incorrect statement. (7pts‚ 1 point each) 1- An Element is a substance that can be broken down into simpler substance by chemical means. 2- The Aufbau Principle states that energy levels must be filled from the highest to the lowest‚ when writing the election configuration. 3- Atomic radius decreases across a period
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Name Naza Moore ID# 24120389 Lab# 2 Lab instructors Alecia Palmer and Donald Burke Course Instructor Maureen Wilson Lab Title Preparation of cyclohexene from cyclohexanol Aim Preparation of an Alkene by dehydration of an alcohol in the presence of a catalyst. Calculate the percentage recovery of products. Test for purity and identification of products. Abstract Cyclohexene and cyclohexanol are both colourless aromatic compounds. The major difference between the two is the presence
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Anthony Martinez Mr. Hruby Chemistry R Period 4(5A) Name & Symbol: Platinum (Pt) Properties: -Atomic Number: 78 -Atomic Mass: 195.084 amu -Appearance: Shiny‚ smooth surface‚ silver like‚ solid. Melting point (K): 2045 Boiling point (K): 4100 Valence electrons: (+1)‚ +2‚ (+3)‚ +4‚ +6 Atomic radius (pm): 139 1st Ionization energy (kJ/mol): 868.1 Electronegativity: 2.28 Natural Occurring Isotopes: Six stable isotopes of platinum occur in nature (190‚ 192‚ 194
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Soluble | Phosphate PO 3-4Carbonate CO 2-3Sulfite‚ SO 2-3 | H | Soluble | Once you recorded all of the data‚ there were a few questions that needed to be answered. A. Compare your results with the solubility rules and/or solubility table in your chemistry text. I would say that my results turned out pretty close to the rules in the text book. I observed many different reactions occurring. The colors of the solutions changed from clear to purple‚ from clear to blue and yellow‚ and from clear to a milky
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Editor’s Note: This occasional series of articles looks at the vital things in our lives and the chemistry they are made of. You are what you eat. But do you recall munching some molybdenum or snacking on selenium? Some 60 chemical elements are found in the body‚ but what all of them are doing there is still unknown. Roughly 96 percent of the mass of the human body is made up of just four elements: oxygen‚ carbon‚ hydrogen and nitrogen‚ with a lot of that in the form of water. The remaining
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Elisa Hofmeister Kokesh Hour 3 AP Chemistry 5-29-12 The Chemistry of Coffee Green Coffee- Before coffee is roasted‚ it is referred to as “green coffee”. The green coffee is primarily made up of caffeine‚ lipids‚ carbohydrates‚ proteins (amino acids)‚ and organic acids (although inorganic acids exist in coffee as well). These groups are quite stable in the green phase‚ and it is the carbohydrates‚ proteins‚ and acids that will undergo significant reactions during roasting to produce coffee
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“Everything in life can teach you a lesson‚ you just have to be willing to observe and learn” -Ritu Ghatourey. Everyone learns crucial life lessons in their lives through various aspects of life around them‚ whether they realize it or not. Learning these lessons is a crucial part of losing one’s simple‚ childlike way of life. Throughout the novel To Kill A Mockingbird Jem and Scout lose their innocence through numerous life lessons they learn. One way in which they learn these lessons is through
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