1 UNIVERSITY OF TECHNOLOGY‚ JAMAICA DIVISION OF CHEMISTRY GROUP: MODULE: AS-2‚ SE-3‚ MT-2‚ BPharm-3‚ BENG-2C ANALYTICAL CHEMISTRY (CHY3022‚ CHY2017) ___________________________________________________________________________ UNIT 1: Assigned Reading: BASIC ELEMENTS OF ANALYTICAL CHEMISTRY Chapt. 1 and 8 Fundamentals of Analytical Chemistry‚ 8th edition INTRODUCTION Analytical Chemistry – that branch of chemistry which is concerned with the theory and practice of methods used to determine
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• describe the general characteristics of the alkali metals and their compounds; • explain the general characteristics of the alkaline earth metals and their compounds; • describe the manufacture‚ properties and uses of industrially important sodium and calcium compounds including Portland cement; the biological significance of sodium‚ potassium‚ magnesium and calcium. • appreciate The s-block elements of the Periodic Table are those in which the last electron enters the outermost
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When a really large unstable isotope changes into to smaller isotopes that are 2 completely different elements. the nucleus has to be larger than 230(mass). They are really slow and spontaneous. Fission = splitting. Can create a chain reaction. (picture above). Critical mass= must be enough mass in a reaction or enough fission type mass‚ fissionable mass‚ for the reaction to continue to go on.(minimum amount). Sub critical mass= mass of fission material that doesn’t have enough to keep the reaction
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Article Excerpt Access to the world’s oil supplies is a principal factor behind US government policy‚ as the events of the past two years have unmistakably shown. And no wonder: possessing only 2% of the world’s reserves of oil‚ the US consumes 25% of global oil production at a cost of $150bn per year. Of this‚ 70% is in the form of gasoline (petroleum) or diesel fuel for transport use. Given the finite supply of oil‚ this cannot go on. Certainly‚ by 2050‚ competition for oil supplies will be
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An Introduction to Structure and Types of Solids Categories Crystalline Solids • Highly regular arrangement of atoms‚ ions and molecule • The position of the components are represent by a lattice • It has smallest repeating unit of lattice is called unit cell • Such as diamond‚ salt‚ sugar Amorphous Solid • A noncrystalline solid which their components not organized in lattice pattern. • Such as glass‚ plastic‚ gel Question 1. X rays from a copper X-ray tube (λ = 154) were diffracted at an
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Table 1 Vinegar - 3 - 2.2 Sodium BiCarbonate Solution - 9 - 8.3 Lemon Juice - 4 - 2 Laundry Detergent - 8 - 8.2 Bleach - 12 - 12.0 Ammonia - 12
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5.) a.) b.) Ethyne (C₂H₂) has the shortest C-to-C bond because there is a triple bond between the two C’s. The shorter the bond‚ the smaller the distance between the two bonded atoms‚ a single bond has the largest distance between two bonded atoms. c.) i.) trigonal planar ii.) pyramidal d.) This is not true because the bonds described are intramolecular forces‚ C-H‚ C-O‚ O-H‚ which are not affected by boiling. When boiling occurs‚ added energy overpowers intermolecular forces‚ not
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Trends in the Periodic table March 24‚ 2013 Four trends that will be covered: Atomic size Ionization Energy Electronegativity Electron Affinity Each of these has a group trend and a period trend A group trend refers to what is happening with the atom as you travel up or down a column of the periodic table. A period trend refers to what is happening with the atom as you move left or right across a row of the periodic table Atomic Size When discussing an atom’s size‚ usually the
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Give me Liberty The theme of liberty is a common value‚ which has always inflamed human’s hearts in all historic events. But what do we mean by liberty? It is a complex concept‚ but in this essay we will sum up this idea as the ability to do no matter when or what without any abusif oppression of someone else. People are always ready to defend this abstract concept with words and‚ if necessary‚ guns. However‚ even if this idea of liberty is common to everyone‚ it does not mean that everybody have
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CHEM/ENCH 212 EXPERIMENT II: KINETICS OF NUCLEOPHILIC SUBSTITUTION DATE OF SUBMISSION: Table of Contents Experimental Table : Hazardous properties of chemicals used in the experiment.[1] Acetone Irritant. Do not inhale vapors. Highly flammable. 2 chloro‚ 2 methyl propane Flammable. Equipment 1. Conductivity probe 2. Constant temperature water circulation bath 3. Stir-plate with stirring magnets
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