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MMLU-Pro / 4592 / A chemist is given an unknown element X. He finds that the element X has an…

Problem

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question

A chemist is given an unknown element X. He finds that the element X has an atomic weight of 210.197amuand consists of only two isotopes,^210X and ^212X. If the masses of these isotopes are, respectively, 209.64 and 211.66amu, what is the relative abun-dance of the two isotopes?

category

chemistry

options

  1. 70%, 30%
  2. 75%, 25%
  3. 72.42%, 27.587%
  4. 50%, 50%
  5. 67.89%, 32.11%
  6. 85%, 15%
  7. 60%, 40%
  8. 80%, 20%
  9. 55%, 45%
  10. 65.5%, 34.5%

src

stemez-PhysicalChemistry

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Source and history

upstream_id / Original problem ID
4592
task_id
e88f4842-2cd9-5b01-98b9-fd7a133b1d4e
task_key
default--test--4592
task_revision_id
1
config / split
default / test

Official source

initial import