Calculate Mn & Mw, and the polydispersity index (PI) for the molecular weight
data provided below and graph. Repeat your calculations if the molecular weight
data were changed by increasing the frequency (# of chains) of the following
molecular weights by 500: 600, 700, 800, 900, 1000, and 1100 and graph.
Explain what happens to the PI and what this means in terms of molecular
weight distribution. Input data and graph in Excel or similar graphing program
and dropbox your Excel file (both graphs along with the Mw, Mn, and PI for each
each data set). Don’t forget to put your name in the Excel filename.
Mi (g/mol) Ni Mi (g/mol) Ni
50 1000 900 6000
100 1200 1000 5000
200 1500 1100 4000
300 1900 1200 3200
400 2500 1300 2500
500 3200 1400 2000
600 4000 1500 1700
700 5000 1600 1400
800 6500 1700 1200
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