What is the mass of one mole of oxygen atoms ?
16 grams
The mass of one mole of atoms of an element equals its atomic mass expressed in grams (gram atomic mass).
The atomic mass of oxygen is 16 u, so one mole of oxygen atoms (\( 6.022 \times 10^{23} \) atoms) has a mass of 16 g.
The value 32 g is for one mole of oxygen molecules (O2), not oxygen atoms.
Hence, 16 grams.
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