Beanium Investigation The purpose of this investigation was to find the average atomic mass for the element Beanium with three isotopes. The average atomic mass is the average mass of the atoms of the element divided by the total number of atoms. An isotope is an atom with the same number of protons‚ but different number of neutrons; they are different forms of a single element. Since we knew the isotopes had almost the same amount of sub-atomic particles‚ we made our hypothesis the following:
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E.I du Pont de Nemours & Co.: Titanium Dioxide Group#: 7 Lu Yu Yang Hu You Wang 1 1. There are basically three technologies to produce TiO2: sulfate process‚ rutile chloride process and ilmenite chloride process. Most of Du Pont’s competitors‚ such as NL Industry‚ mainly used sulfate process‚ which require lowgrade feedstock and produce a large amount of waste. This process will cost the
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Exam Review Sheet #1 Balancing Equations and Simple Stoichiometry Answers are provided on the second sheet. Please try to do the worksheet without referring to them‚ because you’ll be expected to know this stuff the first day of school! Balance the following equations: 1) ___ N2 + ___ F2 ( ___ NF3 2) ___ C6H10 + ___ O2 ( ___ CO2 + ___ H2O 3) ___ HBr + ___ KHCO3 ( ___ H2O + ___ KBr + ___ CO2 4) ___ GaBr3 + ___ Na2SO3 ( ___ Ga2(SO3)3 + ___ NaBr 5) ___ SnO + ___ NF3 ( ___ SnF2
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Amedeo Avogadro was an Italian mathematician in the middle 1800’s. He devised a way of measuring the concentration of particles in a sample. Whether the sample is composed of atoms or molecules‚ he determined that the number of particles having a mass number matching the “atomic weight” was always 6.02 X 1023. In other words‚ if you had a sample of carbon with a mass of 12.011 grams‚ then you would have an Avogadro number of atoms. If you had a sample of water with a mass of 18.00 grams‚ then you
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My results are consistent with those‚ conducted by Dr. Antonini who used the same type of welding fume particles (MMAW: manual metal arc welding). However‚ welding fume doses at 10 mg/kg and 20 mg/kg in my experiment were twice and 4 times‚ respectively‚ the dose that was used in Dr. Antonini’s paper [6]. In blood‚ Dr. Antonini found a 1.5-fold increase in Mn levels‚ whereas in my experiment I found an 8-fold increase in blood Mn after the 20 mg/kg dose. Both results are consistent since the 20 mg/kg
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CHEM 17 Expt.2-Coupled Reactions 4/18/12 Results and Discussions: One way to obtain products from a non-spontaneous process that is exhibited in this experiment is by “coupling” two reactions. The principle of Coupled Reactions is based on a simple concept: we can use a thermodynamically favorable (spontaneous) reaction to drive an unfavorable one. One step is allowed to supply enough free energy for the other to occur. A coupled reaction is a system wherein a non-spontaneous
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Environmental Action Plan Tree Plantation Project (TPP) They are cutting down more trees every day. By organizing a Tree Plantation Project (TPP) we can plant more trees that produce our oxygen. I will be working with the Schools and the Communities to educate how trees help cleanse the air by intercepting airborne particles‚ reducing heat‚ and absorbing such pollutants as carbon monoxide‚ sulfur dioxide‚ and nitrogen dioxide‚ and daily environmental activities. The current problems
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llo 13 [pic] Apollo 13 Problem Solving Using SPICES 1. What situation is the movie Apollo 13 about? They want to go to the moon and land on it. 2. What was the big problem that happened during the movie? There isn’t enough power to come back to Earth. This is the big problem because all the other problems branch of from this issue. 3. List three smaller problems that also came up in the process of trying to fix the big problem. They can’t land on the moon‚ because they were
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UNIVERSITI TUNKU ABDUL RAHMAN Centre Course Year/ Trimester Lecturer : : : Centre for Foundation Studies Foundation In Science Year 1 Trimester 1 Unit Code Unit Title Session : : : FHSC1114 Physical Chemistry 2015/05 : Ms. Amelia Chiang‚ Ms. Azlina Banu‚ Ms. Farhanah‚ Ms.Gurpreet‚ Ms. Jamie‚ Ms. Lau Mei Chien‚ Ms. Lily Lee‚ Ms. Nabilah‚ Mr. Ng Sweet Kin‚ Ms. Phang Ying Ning‚ Ms. Precilla‚ Ms. Rachel Tham‚ Ms. Rajalakshmi‚ Mr. Sivabalan‚ Ms. Tan Lee Siew Tutorial 3: Chapter 3 Stoichiometry
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Greenwealth LLP Silica Fume Flour 022 1 GWSFF022 Materials Supply Offer Foundry Recycleable Materials GW Silica Fume Flour 022 Method of Production Baghouse collection of dust from Silicon Steel foundry processes‚ Slag temperatue 1500 C Metal pouring temperature 1250 - 1300 C. Thermal oxidation of silicon is easily achieved by heating the SiO2 to temperatures typically in the range of 900-1200 degrees C. The atmosphere in the furnace where oxidation takes place can either contain
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