Mass of one molecule of oxygen in amu and in gram respectively is

Mass of one molecule of oxygen in amu and in gram respectively is
  1. $32 \mathrm{u}, 53.13 \times 10^{-24} \mathrm{~g}$
  2. $16 \mathrm{u}, 6.0 \times 10^{-24} \mathrm{~g}$
  3. $42 \mathrm{u}, 5.313 \times 10^{-24} \mathrm{~g}$
  4. $53.13 \times 10^{-24} \mathrm{u}, 32 \mathrm{~g}$

Solution

Mass of oxygen molecule is $=32 \mathrm{u}$ In grams it is $32 \times 1.667 \times 10^{-24} \mathrm{~g}$ $=53.14 \times 10^{-24} \mathrm{~g}$

Asked in: MHT CET 2022 (06 Aug Shift 1)

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