Question:
Mass of one atom of oxygen is:
(a) $\frac{16}{6.023 \times 10^{23}} \mathrm{~g}$
(b) $\frac{32}{6.023 \times 10^{23}} \mathrm{~g}$
(c) $\frac{1}{6.023 \times 10^{23}} \mathrm{~g}$
(d) $8 \mathrm{~g}$.
Solution:
(a) $\frac{16}{6.023 \times 10^{23}} \mathrm{~g}$