IB_ORGANIC_CHEMISTRY_CORE_ONE_(NXPowerLite) Opp

IB_ORGANIC_CHEMISTRY_CORE_ONE_(NXPowerLite) Opp - ORGANIC...

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1 ORGANIC CHEMISTRY CORE 100’s of free ppt’s from www.pptpoint.com library
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2 IB Syllabus 10.1.1 Describe the features of a homologous series 10.1.2 Predict and explain the trends in Boiling points of the members of a homologous series
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3 10.1 Homologous Series (1h)A homologous series is a set of compounds whose components differ by a single repeating functional group. In the case of (straight chain) alkanes, CH 2 . Their general formula is C n H 2n+2 10.1.2 Predict and explain the trends in boiling points of members of a homologous series.
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4 10.1.2 Predict and explain the trends in boiling points of members of a homologous series. Boiling points of unbranched alkanes increase smoothly with number of carbons Melting points increase in an alternating pattern according to whether the number of carbon atoms in the chain is even or odd
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5 10.1.3 Distinguish between empirical, molecular and structural formulas This is a full structural or displayed formula. All the bonds are shown including all the hydrogen atoms This is a form of a condensed structural formula
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6 Formulas continued C 6 H 12 is a molecular formula. It does not give much information as this could be any one of several different compounds. This condensed structural formula could, more correctly, be given as CH 3 (CH 2 ) 3 CH 3 without any of the bonds being shown
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7 GENERAL FORMULAS This are used for homologous series • The alkanes C n H 2n+2 The alkenes C n H 2n • The alkanols or alcohols C n H 2n+1 OH
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8 Empirical formulas This is the simplest whole number ratio For example if the molecular formula of glucose is C 6 H 12 O 6 • Then the empirical formula is CH 2 O This is the empirical formula for many carbohydrates
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What do some of these molecules look like? Methane is a tetrahedral
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IB_ORGANIC_CHEMISTRY_CORE_ONE_(NXPowerLite) Opp - ORGANIC...

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