180 Lab 5: Ionic Reactions Submitted by Abstract: The purpose of this experiment is to work with aqueous solutions of ionic substances. Aqueous solutions are those solutions in which water is the solvent. When ionic substances are dissolved in water‚ the ions separate and become surrounded by water molecules. The focus of this experiment is on precipitates. The goal of this experiment is to study the nature of ionic reactions‚ write balanced equations‚ and to write net ionic equations for
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Nomenclature for Ionic Compounds Ionic compounds consist of cations (positive ions) and anions (negative ions). The nomenclature‚ or naming‚ of ionic compounds is based on the names of the component ions. Here are the principal naming conventions for ionic compounds‚ along with examples to show how they are used: Roman NumeralsA Roman numeral in parentheses‚ followed by the name of the element‚ is used for elements that can form more than one positive ion. This is usually seen with metals. You
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and compare it with the interstellar bands to determine if there really are anions in space. After that seminar‚ I wondered that even if there potentially anions in space‚ since anions are not really stable‚ would the anions much rather form ionic bonds with hydrogen to neutralize their charge? Anions in general are fairly unstable‚ and that since they would prefer to be ionized immediately‚ then one would see bonding in the spectra. Professor Kelley asked an interesting question which was since
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Bibliography: Irwin‚ Debbie‚ Patrick Garnett and Ross Farrelly. Chemistry Contexts: Preliminary‚ 2nd Ed. Melbourne: Pearson Education Australia‚ 2006. Print. "Ionic vs. Covalent Substances - Hands-on Classification MiniLab." Ionic vs. Covalent Substances - Hands-on Classification MiniLab. N.p.‚ n.d. Web. 24 Mar. 2013. <http://www.learningfront.com/mergenthaler/pages/upshur_1.html>.
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SYLLABUS Cambridge O Level Chemistry 5070 For examination in June and November 2014 University of Cambridge International Examinations retains the copyright on all its publications. Registered Centres are permitted to copy material from this booklet for their own internal use. However‚ we cannot give permission to Centres to photocopy any material that is acknowledged to a third party even for internal use within a Centre. © University of Cambridge International Examinations 2011 Contents
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carboxylic acids‚ and other compounds. A gringard reagent is an organic magnesium halide dissolved in a nonreactive solvent (like diethyl ether). The substance is made up of an organic group joined by a high polar covalent bond to magnesium‚ while magnesium is joined by an ionic bond to a halogen (like bromide) a gringard reagent will react with water‚ oxygen or almost any other electrophilic organic compound to produce alcohols‚ which makes it important in laboratories. Organometallic reagents are
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of a book or article) that you used to help you answer the question. 1. Which type of compound usually has higher melting points‚ ionic compounds or covalent compounds? What is the reason for this difference in melting points? (3 points) 2. Do ionic compounds conduct electricity as: (3 points) a. Solids? b. Liquids? c. Aqueous solutions (when the ionic compounds are dissolved in water)? 3. Do covalent compounds conduct electricity as: (3 points) a. Solids? b. Liquids? c. Aqueous
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Purpose: The purpose of the lab was to observe what happens when two ionic compounds are combined in a small area and to be able to record the type of precipitate that is formed. Background: An ionic compound is formed when ions “transfer‚” or lose or gain electrons. The ions in an ionic compound are held together by ionic bonds in a lattice shaped structured. They are packed tightly together to maximize the attraction between the ions. When two compounds are mixed together‚ they form a precipitate
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NAME: MASSAWE BARAKA‚ REG. NO: 2010-04-03894. 12 FINANCE 202 INDIVIDUAL ASSIGNMENT UDBS Consider a 10 year bond that has a face value shs 1000‚ a coupon rate of 6% and pays interest once a year. (a)Suppose person A bought this bond at par when it was initially issued and sold it 1 year later to person B for shs 1024.What is B’s total return? Soln Total return =[ Interest paid +(selling price – buying price)]/buying price Given; Annual interest paid = coupon rate x par value‚ coupon
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Procedure Read through the following Procedures and then draw a data table in your notebook to record your observations about any precipitates or gases that form when the two solutions are combined. Remember to include color for precipitates. Examine the reactions against both dark and white backgrounds. If there is no reaction for that combination of solutions write NR (no reaction). Before beginning‚ set up a data table similar to the Data Table: Solubility Rules Table in the Lab Report
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