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MMLU-Pro / 3690 / A sample of polymer contains 0.50 mole fraction with molecular weight 100,000…

Problem

Answer published by the source. Consult the official source to check your work against its answer.

question

A sample of polymer contains 0.50 mole fraction with molecular weight 100,000 and 0.50 mole fraction with molecular weight 200,000. Calculate (a) the number average molecular weight, M_n and (b) the weight average molecular weight, M_w.

category

chemistry

options

  1. M_n = 200,000 g/mole, M_w = 1.0 × 10^5 g/mole
  2. M_n = 150,000 g/mole, M_w = 1.67 × 10^5 g/mole
  3. M_n = 250,000 g/mole, M_w = 0.67 × 10^5 g/mole
  4. M_n = 150,000 g/mole, M_w = 2.0 × 10^5 g/mole
  5. M_n = 150,000 g/mole, M_w = 1.5 × 10^5 g/mole
  6. M_n = 100,000 g/mole, M_w = 2.0 × 10^5 g/mole
  7. M_n = 125,000 g/mole, M_w = 1.75 × 10^5 g/mole
  8. M_n = 200,000 g/mole, M_w = 1.75 × 10^5 g/mole
  9. M_n = 175,000 g/mole, M_w = 1.25 × 10^5 g/mole
  10. M_n = 100,000 g/mole, M_w = 1.5 × 10^5 g/mole

src

stemez-Chemistry

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Source and history

upstream_id / Original problem ID
3690
task_id
aced6298-180f-50ee-83f6-e56653042d34
task_key
default--test--3690
task_revision_id
1
config / split
default / test

Official source

initial import