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MMLU-Pro / 4591 / Chlorine is found in nature in two isotopic forms, one of atomic mass 35amuand…

Problem

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question

Chlorine is found in nature in two isotopic forms, one of atomic mass 35amuand one of atomic mass 37amu. The average atomic mass of chlorine is 35.453amu. What is the percent with which each of these isotopes occurs in nature?

category

chemistry

options

  1. 90%, 10%
  2. 65%, 35%
  3. 77.35%, 22.65%
  4. 50%, 50%
  5. 60%, 40%
  6. 75%, 25%
  7. 82.35%, 17.65%
  8. 70%, 30%
  9. 80%, 20%
  10. 85%, 15%

src

stemez-Chemistry

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Source and history

upstream_id / Original problem ID
4591
task_id
6f29c9c2-d299-54d9-a5f8-13623cbd05af
task_key
default--test--4591
task_revision_id
1
config / split
default / test

Official source

initial import