What is the mass of :
$(a)$ $0.2$ mole of oxygen atoms?
$(b)$ $0.5$ mole of water molecules?
$(a)$ $0.2$ mole of oxygen atoms?
$(b)$ $0.5$ mole of water molecules?
- A$4.2 \, g$ and $10.0 \, g$
- B$3.2 \, g$ and $9.0 \, g$
- C$6.3 \, g$ and $9.0 \, g$
- D$5.5 \, g$ and $10.0 \, g$
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