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  • Chemistry Factsheet: 119. Molecular Mass Spectrometry : A Summary

    Chemistry Factsheet: 119. Molecular Mass Spectrometry : A Summary

    A vaporised sample is subjected to bombardment by high energy electrons (¤e-). This knocks one or more electrons out of the molecule’s structure producing a molecular ion radical, M+.(g) ...

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  • Chemistry Factsheet: 120. Calculating Equilibrium Compositions – A Cool Method!

    Chemistry Factsheet: 120. Calculating Equilibrium Compositions – A Cool Method!

    To succeed in this topic you need to:-  understand the work in Factsheet 1 on Atomic Structure  understand the work in Factsheet 6 on structure of elements and compounds, including how b...

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  • Chemistry Factsheet: 122. Lewis Acids and Bases

    Chemistry Factsheet: 122. Lewis Acids and Bases

    To succeed in this topic you need to understand:  • the pH scale and Bronsted Lowry definitions of acids and bases  • dot and cross diagrams to show the outer electrons of atoms&...

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  • Chemistry Factsheet: 123. The Ideal Gas Equation

    Chemistry Factsheet: 123. The Ideal Gas Equation

    After working through this Factsheet you will understand:-  • What the Ideal Gas Equation is;  • How it convert into the SI units needed for the Ideal Gas Equation;  •...

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  • Chemistry Factsheet: 124. The Maxwell-Boltzmann Distribution

    Chemistry Factsheet: 124. The Maxwell-Boltzmann Distribution

    After working through this Factsheet you will understand:-  • What the Maxwell-Boltzmann Distribution is;  • How it changes at different temperatures;  • The meaning o...

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  • Chemistry Factsheet: 125. Why Students Lose Marks : Born-Haber Calculations

    Chemistry Factsheet: 125. Why Students Lose Marks : Born-Haber Calculations

    A sound basis for this topic is a good understanding of energy cycles and of  Hess’s Law in particular. Born Haber cycles are the application of  Hess’s Law to the formation of i...

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  • Chemistry Factsheet: 126. Racemisation

    Chemistry Factsheet: 126. Racemisation

    To succeed in this topic you need to understand:  • organic mechanisms, particularly nucleophilic substitution  • the structures of primary, secondary and tertiary haloalkanes&nb...

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  • Chemistry Factsheet: 127. The Gibb’s Free Energy Change and Spontaneity

    Chemistry Factsheet: 127. The Gibb's Free Energy Change and Spontaneity

    Before studying this Factsheet you need to understand:  1. Enthalpy changes of reaction, ∆H  2. Entropy (S) and entropy changes of reaction, ∆S....

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  • Chemistry Factsheet: 128. Key Definitions in AS Chemistry

    Chemistry Factsheet: 128. Key Definitions in AS Chemistry

    After working through this Factsheet you will be able to:  • define the key terms you will encounter in AS Chemistry  • understand and use the terms in their correct context ...

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  • Chemistry Factsheet: 129. Atom Economy

    Chemistry Factsheet: 129. Atom Economy

    After working through this Factsheet you will be able to:  • calculate the atom economy of a reaction  • explain the difference between atom economy and % yield  • und...

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