Quiz 7 ChE 350 F09 Solutions

Quiz 7 ChE 350 F09 Solutions - Quiz 7 for ChE 350 Fall 2009...

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Unformatted text preview: Quiz 7 for ChE 350 Fall 2009 Name: Key 1. Molecular weight data for a polymer are tabulated below. (a) Fill in the blanks in the table, calculating mole fraction, weight fraction, xi Mi and wi Mi. (b) Compute the number average molecular weight: Z l L SR1 $1 the) Number of Mass of each Mole Weight Molecules Molecule (Mi, Fraction (xi) Fraction (wi) Xi M; w Mi - _/rnol o—as we; 1332 10000 0. —Q,:]. C9 l2}? ‘ lZJ’S'O ————. —-——-— 1-00 ZIS‘SZ 15—0 3 200 wow Tel-e0 1.00 by M“: f XML 1 213ch Mm) C.) MW: QWLML: 82,741 («ll/WA A} m1: Ivy , 52,217.: 2%. v 'an “A351 6) $0M (\jtSWVS’e ...
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