PPS_02 - H 3 C C O CH 3 H 3 C C N CH 3 H C C C Cl Cl Cl H C...

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C357: Practice Problem Set #2 Page 1 of 3 1) Explain, through the use of molecular orbitals, why H 2 is stable and He 2 is not. 2) Draw in 3D fashion the following compounds, showing all bonds and their orientation around the atom. CH 3 CH 3 CH 2 CH 2 CHCH CH 3 C(O)CH 3 CCl 4 CH 4 CH 3 C(O)H CCl 3 CCl 3 CH 3 CH 2 CH 3 CH 3 CH 2 CH 2 CH 3 3) In the following compounds, label the polar bonds with an electronegativity arrow (two headed at one end and “+” charge at the other end) to show which bonds are polar and the direction of the bond dipole moment. Cl Cl Cl Cl Cl Br Cl Cl H O H H H H CH 3 H H Cl CH 3 H H H N H H H H H H H H CH 3 CH 3 H 3 C H 3 C Cl F Br I 4) For the compounds in #3 above, which have net molecular dipole moments (which molecules are polar)?
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Page 2 of 3 5) Predict the hybridization for all relevant atoms in the structures below.
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Unformatted text preview: H 3 C C O CH 3 H 3 C C N CH 3 H C C C Cl Cl Cl H C H H C H H H O H O C O 6) Circle the bonds in the compounds below that have free rotation possible around them. H C H H C H H H C C H H C O H 3 C CH 3 H 3 C C N CH 3 H O C O H O H Cl F Br I 7) Circle the following compounds where it is possible that cis/trans isomers exist. Next, label the compounds that you have circled as either cis or trans. C C H Cl H H Cl H H Cl Cl H Cl Cl Cl H H 3 C Cl Cl H H 3 C Cl CH 3 Cl C O H H 3 C C N H H 3 C H Page 3 of 3 8) Which compounds of the following group are structural isomers of other compounds shown in the group?...
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This note was uploaded on 09/30/2008 for the course CHEM 3570 taught by Professor Ganem, b during the Fall '06 term at Cornell University (Engineering School).

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PPS_02 - H 3 C C O CH 3 H 3 C C N CH 3 H C C C Cl Cl Cl H C...

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