HW31 - Molecular Weight Range(g/mol Molecular Weight...

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xi wi 8000-16000 0.05 0.02 16000-24000 0.16 0.1 24000-32000 0.24 0.2 32000-40000 0.28 0.3 40000-48000 0.2 0.27 48000-56000 0.07 0.11 a) b) Mean (Mi) xi xi*Mi 8000-16000 12000 0.05 600 16000-24000 20000 0.16 3200 24000-32000 28000 0.24 6720 32000-40000 36000 0.28 10080 40000-48000 44000 0.2 8800 48000-56000 52000 0.07 3640 Mn = 33040 c) Mean (Mi) wi wi*Mi 8000-16000 12000 0.02 240 16000-24000 20000 0.1 2000 24000-32000 28000 0.2 5600 Molecular Weight Range (g/mol)
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Unformatted text preview: Molecular Weight Range (g/mol) Molecular Weight Range (g/mol) 1 2 3 4 5 0.05 0.1 0.15 0.2 0.25 0.3 0.35 xi wi 32000-40000 36000 0.3 10800 40000-48000 44000 0.27 11880 48000-56000 52000 0.11 5720 Mw = 36240 d) m=3(Ac)+6(Ah) 3(12.01/mol)+6(1.008g/mol) = 42.08g/mol DP=Mn/m=33040g/mol/42.08g/mol DP=785 g/mol 5 6 7 g/mol...
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