Chapter 1-Continue Introduction to Organic Chemistry.

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<ul><li><p>Chapter 1-ContinueIntroduction to Organic Chemistry</p></li><li><p>Writing Dot Lewis Structure with multiple center atomsCarbons will also be the center atom in the organic molecule-C-C-C- chainsHydrogen is connected to carbon unless its an oxyacids (HClO, etc..) or Carbon has no more valence electrons to shareOrder of increasing EN(least) C N O F (most)</p></li><li><p>Write a Dot Lewis structure for CH3COOH</p></li><li><p>ExampleWrite a Dot Lewis Structure for CH3NH2</p></li><li><p>VSEPR TheoryVSEPR theory proposes that the geometric arrangement of terminal atoms, or groups of atoms about a central atom in a covalent compound, or charged ion, is determined solely by the repulsions between electron pairs present in the valence shell of the central atom</p></li><li><p>VSEPR ThoeryCommon shape and anglesLinear (180o)Tetrahedral (109.5o)Trigonal planar (120o)See table 1.2 page 5</p></li><li><p>ExamplesComplete the following Dot Lewis structure by adding the missing lone-pair then predict the bond anglesa.</p><p>b.</p><p>c.</p></li><li><p>*Elements in Organic CompoundsIn organic molecules, carbon atoms bond with four bonds.mostly with H and other C atoms.sometimes to O, N, S. sometimes to halogens F, Cl, and Br.Table 1.3 page 7</p></li><li><p>*Functional groups area characteristic feature of organic molecules that behave in a predictable way. composed of an atom or group of atoms. groups that replace a hydrogen atom in the corresponding alkane.a way to classify families of organic compounds.Functional Groups</p></li><li><p>AlcoholAn alcohol contains the hydroxyl (-OH) functional group.R-OH</p></li><li><p>Writing structural formulas of AlcoholCH4OMolecular formulaCH3OHCondensed formula</p></li><li><p>Writing structural Formulas of AlcoholsDraw Lewis structure and condensed structural formulas for the four alcohol with molecular formula C4H10O. Classify each alcohol as primary, secondary or tertiary. Hints: Consider the connectivity of the four carbon atoms; they can be bonded either four in a chain or three in a chain with the fourth carbon as a branch on the middle carbon. Then consider which carbon should connect to OH with having the same molecule</p></li><li><p>AminesIn amines, the functional group is a nitrogen atom. RNH2, R2NH or R3H | N </p></li><li><p>ExamplesDraw structural formulas of the three secondary amines with the molecular formula C4H11N</p></li><li><p>Carboxylic Acids</p><p>Carboxylic acids contain the carboxyl group, which is a carbonyl group attached to a hydroxyl group. COOH O COH</p></li><li><p>ExamplesDraw condensed structural formulas for the two carboxylic acids with molecular formula C4H8O2</p></li><li><p>Carboxylic estersAn ester contains the carboxyl group between carbon atoms. COOR or CO2R</p></li><li><p>ExamplesDraw structural formulas for the four esters with the molecular formula C4H8O2</p></li><li><p>*Learning CheckClassify each of the following as: alcohol, ether, aldehyde, ketone, carboxylic acid, ester, amine, or amide.1)CH3CH2CH2OH2) CH3OCH2CH33) CH3CH2NH2</p><p> O O 4) CH3COH 5) CH3COCH3</p></li><li><p>ExamplesConsider the formula C4H8O2. Write the structural formula for this molecular formula with A carboxyl groupKetone group and a 2o alcohol groupAn aldehyde and a 3o alcohol groupA carbon-carbon double bond and a 1o alcohol</p></li></ul>

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