Chem 1212L-345 Lab report Experiment #20: Temperature Change and equilibrium Woochul Jin Jeeyoon Kong‚ Alla Asmerom Hagos 03/22/2011 Woochul Jin Chem 1212L-345 Experiment #20 Lab Report Temperature change and equilibrium Introduction: In this experiment‚ we will find out how the variation of the value of an equilibrium constant with temperature can be used to determine the enthalpy (heat)‚ entropy (randomness)‚ and free energy (G) changes associated with the system in question
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UTAR FHSC1134 Inorganic Chemistry Trimester 3 Experiment 1 ________________________________________________________________________ Title: Investigating the Properties of Period 3 Oxides Aim: To examine the oxides of Period 3 elements and describe their structure and bonding. Introduction: Generally‚ there are oxides of metals and non-metals. Metals burn in oxygen to form basic oxides while non-metals form acidic oxides. Structurally‚ they are covalent or ionic compounds. You are to
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Thermodynamics of Borax C3C Justin Nevins Chemistry 200‚ Section M1A Introduction The purpose of the lab was to determine how the solubility of Borax (Na2B4(OH)4) and other thermodynamic quantities such as enthalpy‚ entropy‚ and Gibbs free energy depend on temperature. When Sodium borate octahydrate (Borax) dissociates in water it forms two sodium ions‚ one borate ion and eight water molecules. The chemical reaction is shown as: (reaction 1) A simple acid-base titration
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Enzyme kinetics Purpose: The goal of this investigation was to measure the amounts of products made and see the different elements that that affect the rate of breakdown of p-Nitro phenol in the absence or presence of cellobiase….. Methods: Activity #1 The materials used for this activity are as follows: 1.5 mM substrate‚ enzyme‚ Stop solution‚ buffer‚ DPTPs‚ 15 ml conical tubes‚ cuvettes‚ marker‚ beaker‚ distilled water‚ spectrophotometer‚ stop watch. First four 15 ml conical tubes
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CHEM 212 Laboratory - Dissolution of Borax Formal Lab Report Instructions Title Page: Experiment title‚ your name and partner name‚ course and section number‚ date‚ Signed honor code statement‚ and abstract. I (your name here) pledge that this assignment has been completed with accordance to the George Mason University Honor Policy as well as the policy set by the course. This work is my own and bears no resemblance to any other student’s work (past or present). x__(Signature)______ Purpose
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Trial 3 Observations We added the 30ml of warm water with 4.7 grams of borax powder in to the cup labeled ‘Borax Solution’ and also added a few dots of green food coloring. We then stirred it until all the solutions were completely mixed. When this happened the borax and water turned into a watery green solution. then we added 15ml of glue in the cup labeled ‘Ball mixture’ and added the mixture we made in the cup labeled ‘ borax solution into the ‘ball mixture’ we then began stirring the mixture for
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Thermodynamics of the Dissolution of Borax Lina Jawadi Objectives: * Study a system of salt and water solution. * Determining a variety of important thermodynamics quantities from the solubility information at various temperatures. Background: The salt and water solution in this experiment has relatively simple solubility equilibrium of borax in water. Na2B4O7 . 10 H2O 2Na + + B4O5(OH)42- + 8H2O This reaction is an equilibrium
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Experiment 5 COMMON ION EFFECT MALUBAY‚ Justin Damian PADRILLAN‚ Hazel Rose CD2‚ Group 5 Ms. Sarah Sibug 6 April 2013 ------------------------------------------------- ------------------------------------------------- I. ABSTRACT The common ion effect occurs when a given ion is added to an equilibrium mixture that already contains that ion‚ and the position of equilibrium shifts away from forming more of it. This paper is a follow-up of the experiment which aims to determine the common-ion effect
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Heats Effect on Borax By: Alexis H. Prince Department of Chemistry; Coastal Carolina University‚ Conway‚ SC 29526 April 13‚ 2015 Introduction Borax has many uses‚ whether it’s being used as an antiseptic‚ helping to cure people‚ getting rid of pests‚ or even assisting fruit trees in their growth. It is actually the most important source of the element boron‚ and has been used for years as a “water softening agent.” Borax was found forming in saline lakes‚ or one may find it in Boron‚ California
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The Chemical Engineering Journal‚ 48 (1992) 17-29 17 Development and verification of a simulation model for a nonisothermal water-gas shift reactor Riitta L. Keiski”‚ Tapio SaImib and Veikko J. Pohjola” ‘Department bDepatiment of Process Engineering‚ of Chemical Engineering‚ University of Ouh‚ SF-90570 Oulu (Finland) Abo Akademi‚ SF-20500 Turku (Finland.. (Received December 29‚ 1989; in final from July 5‚ 1991) Abstract A fixed-bed test reactor suitable for studying non-isothermal
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