September 23, 2019, 02:09:33 PM
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Topic: Done.  (Read 9383 times)

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Offline ][nstigator

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Done.
« on: September 25, 2007, 07:47:06 AM »
Thanks!
« Last Edit: September 29, 2007, 12:54:11 AM by ][nstigator »

Offline AWK

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Re: Weight % fraction
« Reply #1 on: September 25, 2007, 09:21:00 AM »
You should find molar ratios. Then
62/28.052 is a number of moles of ethylene in 100 g of polymer;
38/42.078......propylene ....

Finally calculate fraction of ethylene mer. Note, a correct result should contain 2 significant digits (in this case three decimal points are equal to three significant digits).
AWK

Offline ][nstigator

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Re: Weight % fraction
« Reply #2 on: September 26, 2007, 07:18:22 AM »
Thanks!
« Last Edit: September 29, 2007, 12:54:19 AM by ][nstigator »

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