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Taxol Paclitaxel (Taxol) is a drug used to treat several different forms of cancer Discovery In 1960, the American National Cancer Institute (NCI) conducted analysis of several plant materials Pacific yew tree bark showed good activity against certain kind of cancer The obtained material was then fractioned using multi-step portioning and then a pure extract…

A-Level Chemistry : Reaction Kinetics

A-Level Chemistry : Reaction Kinetics

 CHEMICAL KINETIC • The expressions of rate of reaction and types of rates; • Stoichiometric relationships between the rates of appearance or disappearance of components in a given reaction; • Determination of rate orders and rate law using the kinetic data of a reaction; • The graphical method to determine a first-order and second-order reaction….

A-Level Chemistry:  Electrochemistry Objectives

A-Level Chemistry: Electrochemistry Objectives

 6.1 Redox processes: electron transfer and changes in oxidation number (oxidation state) a) calculate oxidation numbers of elements in compounds and ions b) describe and explain redox processes in terms of electron transfer and changes in oxidation number c) use changes in oxidation numbers to help balance chemical equations 6.2 Electrolysis a) state and apply the relationship F = Le…

A-Level Objectives for Chemical Equilibria

A-Level Objectives for Chemical Equilibria

 7.1 Chemical equilibria: reversible reactions; dynamic equilibrium a) explain, in terms of rates of the forward and reverse reactions, what is meant by a reversible reaction and dynamic equilibrium b) state Le Chatelier’s principle and apply it to deduce qualitatively (from appropriate information) the effects of changes in temperature, concentration or pressure on a system at equilibrium c) state whether…

What are the A-Level objectives for reactions kinetics?

What are the A-Level objectives for reactions kinetics?

 8.1 Simple rate equations; orders of reaction; rate constants a) explain and use the term rate of reaction b) explain qualitatively, in terms of collisions, the effect of concentration changes on the rate of a reaction c) explain and use the terms rate equation, order of reaction, rate constant, half-life of a reaction, rate-determining step d) construct and use rate…

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