Question
A sample of a polymer has 200 molecules of molar mass 1000 each, 300 molecules of molar mass 10,000 each and 500 molecules of molarmass 1,00000 . The weight average molecular mass of this polymer is?(a) 55394(b) 49553(c) 94553(d) 35594
Step 1
This can be done by multiplying the number of molecules by their molar mass. For the molecules with molar mass 1000, the total mass is 200 * 1000 = 200,000. For the molecules with molar mass 10,000, the total mass is 300 * 10,000 = 3,000,000. For the molecules Show more…
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