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1 mol = 6.02 x 10^23

2.88 x 1023 atoms = 2946.24 atoms = (2946.24) / (6.023 x 10^23) moles

= 4.89 x 10^-21moles

Or if you meant=> 2.88 x 10^23 atoms = (2.88/6.02) moles = 0.478 moles (3 s.f)

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What is the mass of 3.34 moll of gold atoms?

To find the mass of 3.34 moles of gold atoms, you need to multiply the number of moles by the molar mass of gold. The molar mass of gold is 196.97 g/mol. Therefore, the mass of 3.34 moles of gold atoms is 3.34 moles * 196.97 g/mol = 658.5 grams.


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