Cavite Philippines ABSTRACT Gases behave in a similar way over a wide variety of conditions because to a good approximationthey all have molecules which are widely spaced‚ and nowadays the equation of state for an ideal gas isderived from kinetic theory. The combined gas law or general gas equation is formed by the combination of the three laws‚ and shows the relationship between the pressure‚ volume‚ and temperature for a fixed mass of gas. The Gas Laws that have been subject to testing were
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91-107 International Journal of Environment and Bioenergy ISSN: 2165-8951 Florida‚ USA Journal homepage: www.ModernScientificPress.com/Journals/IJEE.aspx Article Biosorption of Toxic Heavy Metals by Unmodified Marine Red Alga (Kappaphycus alvarezii): Kinetics and Isotherm Studies Sohail Rafiq 1‚ Majid K.M. Ali 2‚ Mahyar Sakari 1‚ Jumat Sulaiman 2‚ Suhaimi M. Yasir 3‚ * 1 Water Research Unit (WRU)‚ School of Science and Technology‚ Universiti Malaysia Sabah‚ 88400 Kota Kinabalu‚ Sabah 2 Mathematics with
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Fathi Habashi Montana School of Kinetics of Corrosion of Metals Mines Butte For better understanding of corrosion processes‚ it is essential a t first to consider the simple cases of corrosion when no insoluble products‚ scales or films are formed. Once the mechanism of these processes is well established‚ it may be possible to understand corrosion processes in general. Corrosion processes in this category (no insoluble end products are formed) can he divided into two broad
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oxidized when exposed to air and light. Vitamin C is a fairly strong reducing agent and decolorizes many dyes. Its aqueous solutions are rapidly oxidized by air; this reaction is accelerated in basic solution and in the presence of iron and copper ions. The vitamin-C content of juices can decrease rapidly with time once the juice is exposed to air. (Much of the information reported here about vitamin C was obtained from the Merck Index‚ Susan Budavari‚ Ed.‚ Merck and Co.‚ Inc.‚ Rahway‚ NJ‚ 1989‚
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12.097 Environmental Chemistry of Boston Harbor – IAP 2006 Lab 1: DETERMINATION OF DISSOLVED OXYGEN BY WINKLER TITRATION 1. Background Knowledge of the dissolved oxygen (O2) concentration in seawater is often necessary in environmental and marine science. It may be used by physical oceanographers to study water masses in the ocean. It provides the marine biologist with a means of measuring primary production - particularly in laboratory cultures. For the marine chemist‚ it provides a measure of
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atoms/molecules/ions as there are atoms in a 12g sample of carbon -12 12g of carbon-12 contains a constant number of atoms. This number is known as the Avogadro constant (L) and is equal to 6.02 x 1023. 1 mole of carbon-12 contains 6.02 x 1023 atoms. Therefore‚ 1 mole of any substance contains 6.02 x 1023 atoms/molecules/ions. For example‚ 1 mole of aluminium contains 6.02 x 1023 Al atoms 1 mole of ammonia contains 6.02 x 1023 NH3 molecules 1 mole of iron ions contains 6.02 x
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Mg2+ ions Femi J. OLORUNNIJI*‚ Adedoyin IGUNNU‚ Joseph O. ADEBAYO‚ Rotimi O. ARISE and Sylvia O. MALOMO Department of Biochemistry‚ University of Ilorin‚ P.M.B. 1515 Ilorin‚ Nigeria Received 19 March 2007 MS/No BKM/2007/028‚ © 2007 Nigerian Society for Experimental Biology. All rights reserved. --------------------------------------------------------------------------------------------------------------------------------------- Abstract The interactions of Mg2+ and Zn2+ ions in the
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THERMOCHENISTRY Index 1.0 Introduction | | | | | | | | 1 | 2.0 Enthalpy Changes | | | | | | | 2‚3 | 2.1 The Standard Conditions For Calculating Enthalpy Changes | | | | 3.0 Hess’s Law | | | | | | | | 4‚5 | 3.1 The Applications of Hess’s Law | | | | | | 4.0 Standard Molar Enthalpy Change of Formation‚ ΔHof | | | | 6‚7 | 4.1 The Stability of A Compound | | | | | | | 4.2 Using ΔHof
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done by forming triiodide ions. To make the measurement more accurate‚ starch was added to help determine the endpoint of the solution. The significance of this lab is that industry can use these techniques to determine the amount of NaClO in the bleach of the rival industry and improve it. Hypothesis: The hypothesis is that‚ an accurate determination of NaClO in commercial bleach can be done. By mixing the acidified iodide ion to the hypochlorite solution‚ the iodide is oxidized to iodine which
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substance dissolved in the solution. The solvent‚ the other component‚ is any liquid in which the solute can be dissolved (Anderson‚ 2002). Diffusion requires little or no energy because molecules are always randomly moving; this is due to their kinetic energy. Diffusion occurs only when there is an imbalance in the areas of concentration. The difference in concentration of molecules over a distance is known as a concentration gradient (Enger‚ Ross‚ & Bailey‚ 2005). Furthermore‚ net movement relates
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