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Measuring Mass

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Question

Calculate the mass of $1$ oxygen atom and oxygen molecules in kg $(O = 16)$ .

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Solution

One atom of oxygen $= 1 \times$ atomic mass
$= 1 \times 16 = 16 g m = 0.016 K g$
A molecule of $O_{2} = 2 \times$ atomic mass
$= 2 \times 16 = 32 g m = 0.032 K g$

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