Select the choice that best describes the relationship of the following pair of compounds |
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Classify the following pair of compounds as constitutional isomers, geometric isomers, the same compound, or not isomeric. |
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a) Draw the complete structure of butane. (Show all hydrogen atoms.) b) Draw the structure of butane in line-bond mode. (Do not show the hydrogen atoms.) |
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Highlight – by clicking on only bonds OR only atoms – the longest carbon chain that forms the foundation for the compound\’s name. |
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Draw the structure of 2,3-dimethylbutane. |
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The molecule 2,2-diisopropylheptane is incorrectly named. What is the correct name? |
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Select the correct IUPAC name for the following branched chain alkane. |
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What is the IUPAC name for the compound shown below? |
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Which is the correct name of the following molecule? |
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Select the correct name for the given structure. |
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Choose the correct name for the given structure. |
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Draw the structure of cyclopentane. |
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Draw the structure of 1,3-dimethylcyclohexane. |
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Three structural isomers have the formula C5H12. Draw and name the isomers using IUPAC names. Use a hyphen (-) where necessary, not an en-dash (-). |
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Hexane is an unbranched alkane with the condensed structure CH3CH2CH2CH2CH2CH3. a) Draw the complete structure of hexane. (Show all hydrogen atoms.) |
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Translate the given conformer from the wedge-and-dash drawing into its Newman projection |
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Translate the given conformer from the wedge-and-dash drawing into its Newman projection. |
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Name the following compound shown in its Newman projection |
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Translate the given theoretical conformer from the Newman projection to its wedge-and-dash drawing. (Replace the provided placeholder H atoms with the appropriate atom/group). |
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For the substituted cyclohexane compound given below, highlight the groups – by clicking on atoms – that are trans to the bromo substituent. |
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Given cyclohexane in a chair conformation, substitute two of the H labels with ethyl and fluorine to construct the more stable conformation of cis-1-ethyl-2-fluorocyclohexane. Use the numbering provided on the ring. |
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Isopentane (a.k.a. 2-methylbutane) is a compound containing a branched carbon chain. A Newman projection is given for six conformations about the C2-C3 bond of isopentane. On the curve of potential energy versus angle of internal rotation for isopentane, label each energy maximum and minimum with one of the conformations. |
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The Newman projections of 1,1-dichloro-2-bromoethane are shown below. Select the most stable conformation(s). |
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For the substituted cyclohexane compound given below, highlight the substituents – by clicking on atoms – that will interact with the methyl group in a 1,3-diaxial fashion after rotation to the other chair conformation. |
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For cis-1,3-dimethylcyclohexane, which two chair conformations are in equilibrium? |
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For trans-1-ethyl-4-isopropylcyclohexane, which two chair conformations are in equilibrium? |
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A trisubstituted cyclohexane compound is given below in its chair conformation. Draw the corresponding planar (overhead) representation, using wedge-and-dash bonds to indicate the substituent positions. To be graded properly, include the hydrogen atoms on the halogen-bearing carbon atoms. Be sure that both wedge/dash bonds are drawn on the outside of the ring, or else the stereochemistry may be interpreted as square planar. (See Hint.) |
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Organic Chemistry 331- Sapling Learning CH 3
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