'Mol dm 3' diaporamas de présentation

CHM 213 PHYSICAL CHEMISTRY

CHM 213 PHYSICAL CHEMISTRY. CHAPTER 2 CHEMICAL KINETICS. What is Chemical Kinetics?. The study of the speed or RATE at which a chemical reaction occurs. What is the importance of the knowledge of chemical kinetics ? to study the effectiveness of some medicine

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ELECTROLYTE CONDUCTANCE

ELECTROLYTE CONDUCTANCE. CMT552 ELECTROCHEMISTRY AND CORROSION SCIENCE. What is electrolyte?. Any substance that produce ions when dissolved in a solvent (usually water) is an electrolyte. It is the electrically conductive solution that must be present for corrosion to occur.

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Chapter 4 Chemical Equilibrium

Chapter 4 Chemical Equilibrium. Dynamical Equilibrium. concept introduced by A. W. Williamson in 1851 during a study of esterifications. at a fixed temperature (1862, Berthelot & Gilles)

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English for Chemistry

English for Chemistry. ???. Tel ? 2184185 (office) 13799292567 Email: qmwang@xmu.edu.cn. ??????????? ( ????? 332 ?. Outline of the Course. Some Aspects of General Chemistry (~ 7 times) Some Aspects of Inorganic Chemistry ( ~ 4 times) Some Aspects of Organic Chemistry

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IB1 Chemistry Quantitative 1b

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Calculating concentrations

Calculating concentrations. The concentration of a solution can be measured in grams per dm 3 (g/dm 3 ) or moles per dm 3 (mol/dm 3 ). The following equation gives concentration in g/dm 3 :. mass dissolved (g). concentration =. volume of solution (dm 3 ).

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Chemical equilibrium

Chemical equilibrium. L.O.: Use Kc (the equilibrium constant ) to work out the composition of an equilibrium mixture. THE EQUILIBRIUM CONSTANT K c. for an equilibrium reaction of the form... a A + b B c C + d D

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Higher Paper Practice, Question 1

Higher Paper Practice, Question 1. Empirical formula is Na 2 S 2 O 3.

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Kinetic Study of Hydrolysis of Di-3-Chloro-2- Methylaniline Phosphate in Acid Medium

Kinetic study of the hydrolysis of di-3-chloro-2-methyl aniline phosphate has been carried out in the acid region, 0.5 to 7.0 mol dm-3 HCl at 800 C in 40% (v/v) dioxane-water medium. The rate of hydrolysis increases with increase in acid molarity up to 4.0 mol dm-3 HCl and after that it decreases. The lowering of rate after 4.0 mol dm-3 HCl has been attributed to the effect of water activity. Ionic strength data is used to identify reactive species and find out theoretical rates. Bimolecular behaviour of the hydrolytic reaction has been decided by Arrhenius parameters, Hammett acidity function, Zucker Hammett equation, Bunnett and Bunnett-Olsen parameters. Solvent effect on hydrolytic reaction has been found to indicate the formation of a transition state in which charge dispersion occurs.

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Using Equilibrium Data

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