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Convert:2.39 x 1023 atoms of gold = moles
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Convert:2.39 x 1023 atoms of gold = moles

User Lincollincol
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Solution

For this case we can use the Avogadro number and we have:


2.39x10^(23)atoms\cdot\frac{1mol}{^{}6.023x10^(23)atoms}=0.397mol

User Wurtzelzwerk
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