1.The enthalpy of vaporization for water is 40.7kj/mol at 1atm (760torr) then what is the boiling point of water at 475torr?(Tb=100c R=8.3145j/k mol) 2.Rank the following compounds according to increasing values(disorder) of ΔS °soln(JK^-1mol^-1) for LiF NaCl KCl and CaS dissolvin in water 3.which of the following molecules display optical activity? trans-[Cr(en)2Br2]- cis-[Cr(en)2Br2]- [Co(edta)]- [Co(en)3]3+ cis-[Pt(NH3)2Cl2] [CrCl2Br2]2-(tetrahedral) 4.the compound ZrI4 can be mdescribed as cubic cloest packed anions(I-) with the cation(Zr4+)in tetrahedral holes. what fraction of the tetrahedral holes is occupied? (A)1 (B)1/2(C)1/4 (D)1/8 (E)1/16 請各位幫個忙,實在想不出來,快要考試了,覺得有完蛋的感覺 --

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