74. Solving a chemistry problem
Problem 1. Calculate the number average, weight average, and z-average molar mass for the following polymer molar mass distribution.
mi, g 1.15 0.73 0.415 0.35 0.51 0.34 1.78
Mi, kg/mol 12.5 20.5 24.0 32.0 39.0 45.0 63.5
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