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Measuring Mass

The average m...

Question

The average mass of one gold atom in a sample of naturally occurring gold is $3.27 \times 10^{- 22}$ g. Calculate the molar mass of gold. (Nearest integer)

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Solution

The molar mass of gold is obtained by multiplying the average mass of an atom with Avogadro's number.
The molar mass of gold is $3.270710 \times 10^{- 22} \times 6.023 \times 10^{23} = 196.2$ g/mole.

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