Unformatted text preview: nd-row homonuclear diatomic molecules in which the
π2p (pi 2p) orbitals lie at higher energy than the σ2p (sigma 2p), draw MO energy diagrams and
predict the bond order in a molecule or ion with each of the following numbers of total valence
electrons. Will the molecule or ion be diamagnetic or paramagnetic?
(d) 14 ! ! Bond Order? ___2.5__ ___2___ ___1___ Magnetism? Paramagnetic Paramagnetic Diamagnetic
2 EXAM 3 - Karlin 9.(18) page 3 of 3 (+ Periodic Table) ANSWERS _____ Three different coordination compounds are known with the same empirical formula,
CrCl3•6H2O. When exposed to a dehydrating agent (which removes water, but only water
molecules which are not directly bonded to the metal ion), compound 1 loses two moles of
water per mole of compound, compound 2 loses one mole of water, and compound 3 loses
no water. (a) Identify and draw all possible structures (be sure to consider possible
isomers) of each of these compounds?
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