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How many gold atoms are contained in 0.650 grams of gold?
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How many gold atoms are contained in 0.650 grams of gold?

User Leejoy
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1 Answer

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Moles of gold = mass of gold/atomic weight of gold
= 0.65/196.967
= 3.3 x 10^-3

Number of gold atoms = moles x 6.02 x 10^23
= 1.98 x 10^21 atoms

Hope this helps!
User Joe Rinehart
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