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Gas laws and mole concept - class-X

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Multiple Choice

A quantity of $2.0\ g$ of a triatomic gaseous element was found to occupy a volume of $448\ ml$ at $76\ cm$ of $Hg$ and $273\ K$.

The mass of its each atom is _______________.

  1. $100\ amu$
  2. $5.53\times 10^{-23}\ g$
  3. $33.3\ g$
  4. $5.53\ amu$
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