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What are the number average molecular weights of Nylon 66 and Nylon 11, when the conversion is 90%?

What are the number average molecular weights of Nylon 66 and Nylon 11, when the conversion is 90%? Correct Answer 2260, 1830

The value of Xn is given by, Xn= 1/(1-p) = 1/(1-0.9) = 10 Thus, for Nylon 66, Mn= 226*10=2260 For Nylon 11, Mn= 183*10= 1830 (226 and 183 are the molecular weights of the repeating units of polymer Nylon 66 and Nylon 11, respectively).

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