Chemistry, 16.10.2019 22:00 Graciesett4072
Howard describes a model system used to test the molecular weight distribution of acondensation polymer (g. j. howard, j. polym. sci. 37, 310 (1959)): "the polymer sample was an acetic acid-stabilized equilibrium nylon-6,6. analysis showed it to have the following end group composition (in equivalents per 106 g): acetyl = 28.9, amine = 35.3 and carboxyl = 96.5. the number average degree of polymerization is, therefore, 110 and the conversion degree (= extent of reaction) = 0.9909.for nylon-6,6, 99% of the carboxylic acid groups are know to have reacted.
calculate the average of mn, mw and mz.
Answers: 3
Chemistry, 22.06.2019 16:10
Given the following equation: 2a1 + 3mgcl2 --> 2alcl3 + 3mg how many moles of aluminum chloride are produced from 2.5 moles of magnesium chloride?
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The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.
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Chemistry, 23.06.2019 01:30
Ariver current has a velocity of 5km/h relative to the shore, and a boat moves in the same direction as the current at 5 km/h relative to the river. how can the velocity of the boat relative to the shore be calculated?
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Howard describes a model system used to test the molecular weight distribution of acondensation poly...
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