02_C357_PPS_2_struct__EN_2007 - C357: Practice Problem Set...

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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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P a g e 2 o f 3 5) Predict the hybridization for all relevant atoms in the structures below.
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02_C357_PPS_2_struct__EN_2007 - C357: Practice Problem Set...

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