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MMLU-Pro / 3858 / One gram of an unknown gaseous compound of boron (B, atomic weight = 10.8…

Problem

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question

One gram of an unknown gaseous compound of boron (B, atomic weight = 10.8 g/mole) and hydrogen (H, atomic weight = 1.0 g/mole) occupies 0.820 liter at 1.00 atm at 276 K. What is the molecular formula of this compound?

category

chemistry

options

  1. B6H6 (hexaborane)
  2. B3H6 (triborane)
  3. BH3 (borane)
  4. B4H10 (tetraborane)
  5. B2H4 (diborane)
  6. B2H6 (diborane)
  7. B10H14 (decaborane)
  8. B2H2 (diboron dihydride)
  9. BH (boron monohydride)
  10. B5H9 (pentaborane)

src

stemez-Chemistry

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Source and history

Official source

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