HW9 - Rahman, Tarique Homework 9 Due: Nov 6 2007, midnight...

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Rahman, Tarique – Homework 9 – Due: Nov 6 2007, midnight – Inst: Vandenbout 1 This print-out should have 23 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. The due time is Central time. Room Assignments For EXAM 2 A-K WEL 1.316 L-O WEL 2.122 P-Z WEL 1.308 001 (part 1 oF 1) 10 points IdentiFy the kinds oF intermolecular Forces that might arise between molecules oF cis - CHCl CHCl. 1. London Forces 2. dipole-dipole 3. None oF these 4. hydrogen bonding 5. London Forces, dipole-dipole, hydrogen bonding 6. London Forces, dipole-dipole 002 (part 1 oF 2) 10 points Calculate the ratio oF the potential energies For the interaction oF a water molecule with an Al 3+ ion (oF radius 53 pm) and with a Be 2+ ion (oF radius 27 pm). 1. 0.52 2. 0.63 3. 0 . 39 4. None oF these 5. 0.76 6. 0.24 003 (part 2 oF 2) 10 points Which ion will attract a water molecule more strongly? 1. Equal attraction 2. Al 3+ 3. Be 2+ 004 (part 1 oF 1) 10 points Which oF the Following cations is likely to be hydrated in compounds? 1. NH + 4 2. K + 3. Li + 4. Cs + 5. Rb + 005 (part 1 oF 1) 10 points Which oF the Following compounds is UN- LIKELY to be commonly available and thus not Found in the laboratory? 1. Na 2 CO 3 · 10H 2 O 2. BaCl 2 · 2H 2 O 3. CuSO 4 · 5H 2 O 4. La(NO 3 ) 3 · 6HO 5. KCN · 2H 2 O 006 (part 1 oF 1) 10 points What would be the most signifcant type oF intermolecular Forces in a liquid sample oF ±uoroForm (CH² 3 )?
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This note was uploaded on 10/31/2009 for the course CH 56435 taught by Professor Flowers during the Spring '08 term at University of Texas at Austin.

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HW9 - Rahman, Tarique Homework 9 Due: Nov 6 2007, midnight...

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