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practice-test-2-koofer-C

# practice-test-2-koofer-C - Data h=6.626><10‘34 is...

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Unformatted text preview: Data: h=6.626><10‘34 is, Rg=109737 cm'k c=3><108 m/s, 1ne=9ni><1031 kg i.=~ Arrange the orbitals of the hydrogen atom in order of increasing energy (decreasing stabiiity) up w the 4p erbiiai. Be the same for a muitieieeti‘onie atem and explain in detaii the iiiifiereilees5 if any. (15 points) Rem Page? cm Figiiaii \Hh‘ag gem-“512?, Give meme it) (ii/ii; Mme??? Lie iiii‘itTiEi/in/‘i :Hzeimm f ANS eieeiiive mueei Mme 2.— Derive the energy and wavefunction of the particle-in—a-box model. (25 points) 2.3) Sketch the model 2.b) Solve H‘P=E‘P starting with the wavefunction LI’=Asin(kX) (A is a constant equal to (2/L)1/2). 2.c) Sketch the 3 ﬁrst wavefunctions (n=1,2,3), and the probability distribution of the location of the particle for these three states. i l i I 1 3am Vaienceuhond theory vs Molecular-orbital theory (20 points) 35a) Describe the bonding in N0 using Molecularuﬂrhitai theory (You must draw the MG diagram. in that diagram, you must include the atomic orbitals at each side of the molecular orbitals. Please, do not sketch the MO’s that arise from linear combinations of is orbitals.) 3J0) Explain it the bond in NE? is stronger, weaker, or identical to that in N0 using M0 theory, 3.c) Explain the bond in N®+ rising valenceahond theory assuming that the positive charge is originated because one electron is missing from at p orbitai of the O atom (pictures are requiretl), 3d) Compare the description of N0+ by M0 theory and valencewhonti theory, H toot M QUtWW Z 8:; WET "8 4.— Explain the following intermolecular forces, write the dependence of the potential energy on the intermolecular separation and charge, dipole or polarizabilitya and give an example of each. (15 points) a) Ion-Dipole b) Ion—Dipole induced c) Dipole— Dipole induced d) Dispersion . «23 % __, §+\\ - ‘ JILL mi in (Dav @i\\zy x Vid “CU: hi Silk imniai Wk: Wiilwiii iv Sham Min 9"} i9) An. we met incipiu Q. (kw kpeniim M J! “062204)! “929\$; mixiqiwL/i “Willi/ﬂ Wii Qﬂi gmwuu gig-QR V (A E f: .. r 5.— We shine Eight of E90 nm em a Zinc surface“ Whar is the veEecity of the electrons ejected if the threshold frequency to dislodge an electron is 8.54xwl4HZ? (Him: Use 81 units) (10 points) V2} Loser/ff; 5 6s Draw ehe meieeuﬁaruerhitai diagram of the OH radicai and estimate its bend order. What is the hand order of the OH“ species generated when one electron from the highesr=energy M0 of OH is removed? (15 points) H gr E3 a , _ "1g? . WW 2'3 (e EFL» m, \ IL} ‘3 “a {WI 2471:; ?‘d2§’é L? N N ems \ @433 3‘ P 1*} £11.] a? x ‘ \$957 I 9/ I . h ’j a NSNJEQNDM EN EL \ 3 New 3mm M; mg ._. ,. We ELEQMM (Wevcwvar or ‘3' I“ \x Kl a (jg/:4. {g ...
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