Stockings inc. is making nylon 6,6 in 8 hour shifts. one batch is produced per shift using equimolar amounts of the reactants with a conversion of 99%. after each run the product is extruded and chopped into pellets.

a. what is the number average molecular weight?

b. the afternoon shift operator dumped in too much adipic acid. from her records you calculate that the molar ratio was 2% excess adipic acid. assuming the batch went to the usual conversion what was mn ?

c. the night shift operator weighed everything correctly but fell asleep and let the reaction run too long to 99.5% conversion. what is mn for this batch?

d. how should the engineer mix these batches to come within ±10% of the usual specification of mn ? what will be mw ?

e. what would happen to mn and mw if the mixture is heated?