Compute fraction of isobutylene and isoprene
A random poly(isobutylene-isoprene) copolymer has a number-average molecular weight of 202000 g/mol and a degree of polymerization of 3030. Compute the fraction of (a) isobutylene and (b) isoprene repeat units in this copolymer.
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A random poly(isobutylene-isoprene) copolymer has a number-average molecular weight of 202000 g/mol and a degree of polymerization of 3030.
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A broken clothes drier with a mass of 128 kg is hurled from a cliff 12.6 m high with an initial velocity of 14.5 m/s, directed at an angle of 39.8° above the horizontal. a) How much work is done on the drier by its own weight during its fall fr
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