------------------------------------------------- Application of Statistical Concepts in the Determination of Weight Variation in Samples Maria Catherine C. Cabrera Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City June 19‚ 2013 ------------------------------------------------- June 26‚ 201 ------------------------------------------------- Abstract In this experiment‚ different statistical concepts; such as Q-test‚ Mean‚ Standard Deviation‚ Range‚ and Confidence interval
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The VSEPR Model 10.33 Predict the shape or geometry of the following mole- cules‚ using the VSEPR model. a. SiF4 b. SF2 c. COF2 d. PCl3 10.34 Use the electron-pair repulsion model to predict the geometry of the following molecules: a. GeCl2 b. NF3 c. SCl2 d. XeO4 10.35 Predict the geometry of the following ions‚ using the electron-pair repulsion model. a. ClO3? b. PO43? c. SCN? d. H3O? 10.36 Use the VSEPR model to predict the geometry of the fol- lowing ions: a. N3? b. BH4? c. SO32? d. NO2
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A prominent Anglo-indian‚ Derozio played a major role in introducing western attitudes into Indian intellectual life. He taught literature and history at Hindu College‚ Calcutta and was perhaps the first nationalist poet of modern India. Drawing inspiration from French Revolution‚ he inspired his pupils to think freely and rationally‚ question all authority‚ oppose meaningless customs and traditions. He started a discussion group—the Academic Association—to enable interaction amongst students. He
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is a measure of the amount of calcium and magnesium carbonate dissolved as Ca 2+ and Mg 2+ in water. There are no health hazards associated with water hardness‚ however‚ it causes scaling‚ as well as forming of soap suds. Compleximetric titration is one of the best ways of measuring total water hardness using a standard ethylenediaminetetraacetic acid (EDTA) solution. EDTA solution is used as it has the ability to easily bind with calcium and magnesium ions. EDTA and Ca2+ react at the ratio of 1:1
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Chemistry 211 Organic Chemistry I Bilal R. Kaafarani www.bilalkaafarani.com bilal.kaafarani@aub.edu.lb Office: 416 Chemistry O.H.: 2:00-3:20 PM‚ MW Chem 211 B. R. Kaafarani 1 Lectures Chapter 1 2 3 7 4&8 5 6 9 10 11 12 Chem 211 Material covered Structure Determines Properties Alkanes & Cycloalkanes: Introduction to Hydrocarbons Alkanes & Cycloalkanes: Conformations and cistrans Stereoisomers Stereochemistry Alcohols & Alkyl Halides. Nucleophilic Substitution Structure & Preparation
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vibrating around‚ the hotter the object feels. We can sidestep this molecular picture by dealing with objects as a whole‚ and treating the energy transfer as the flow of heat‚ rather than kinetic energy transfer among particles. |Specific Heat for Various Materials | |Material |Specific Heat | | |(J/kg C°) | |Water |4186 | |Aluminum |900
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Spontaneous Human Combustion Spontaneous Human Combustion(SHC) pertains to the burning of a person’s body occurring without an outside source of ignition. The characteristics of SHC varies form different cases but most of the time evidences gathered are more likely show similar clues which we can relate to other SHC cases. Now‚ the evidences gathered are as follows; the victim is an elderly‚ the furniture around the victim stayed untouched‚ a part of the ceiling above the victim was damaged
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in this report is heat transfer in a concentric tube heat exchanger. A heat exchanger is a device used to transfer heat from a hot fluid to a colder fluid. Heat exchangers are widely used in the petroleum industry for various reasons. Some of the most important reasons are theta heat exchangers increase the process efficiency‚ conserve energy‚ reduce maintenance and provide employee safety among many other reasons. The main objectives of the lab study were to determine the heat transfer rate‚ the
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C H EM 301A - O rganic Chem istry L ecture N otes © Dr. Peter de Lijser‚ 2011 Introduction – Welcome to O-chem! “What is Organic Chemistry?” Organic chemistry is the chemistry of Carbon. “Why is Organic Chemistry Important for me?” Organic Chemistry is the central science for many other fields: • Medicine/Pharmacy: • Biochemistry: • Industrial Applications: • Reaction Mechanisms: What do "Organic Chemists" do? • Discover new reactions • Improve old reactions
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Empirical Formula of Magnesium Oxide Date: Aim: The aim of this experiment was to determine the empirical formula of magnesium oxide. Equipment: · Balance · Crucible and lid · Bunsen burner · Magnesium ribbon (0.2g) · Steel wool · Crucible tongs · Pipe clay triangle · Tripod Procedure: 1. Obtain a clean‚ dry crucible and lid‚ then heat them for approximately 5 minutes over a Bunsen burner 2. Clean the surface of a 20 cm strip of magnesium ribbon using steel wool 3. Coil
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