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The molar mass of copper is its atomic weight on the Periodic Table in g/mol, and is
63.5g/mol

We know that one mole of copper contains
6.022×10^23 atoms of copper . First convert given mass to moles, and moles to atoms.

= 61.0 g Cu × (1 mol Cu / 63.5 g per mol) ×6.022 × 10 ^23 atom cu / 1 mol Cu) = 5.78× 10^23.

atoms.

61 g Cu 5.7 ×10^23 atoms of Cu.

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SARVESH YADAV

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2y ago

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