The number of atoms consisting in 127.08 grams of Copper has been 12.046 [tex]\rm \times\;10^2^3[/tex] atoms.
Copper has been a metal that has been consisted of 27 electrons. The molecular mass of copper has been 63.546g/mol.
The molecular mass of an element has been equivalent to the mole of the compound.
Moles = [tex]\rm \dfrac{weight}{molecular\;weight}[/tex]
The moles of Cu in 127.08 grams has been:
Moles of Cu = [tex]\rm \dfrac{127.08\;g}{63.546\;g/mol}[/tex]
Moles of Cu = 1.999 moles.
Moles of Cu = 2 moles.
The moles of Cu in 127.08 grams have been 2 moles.
The number of atoms in a mole of the sample has been equivalent to Avogadro's number.
1 mole - 6.023 [tex]\rm \times\;10^2^3[/tex] atoms.
The number of atoms in 2 moles of the sample has been:
2 moles Cu = 2 × 6.023 [tex]\rm \times\;10^2^3[/tex] atoms.
2 moles Cu = 12.046 [tex]\rm \times\;10^2^3[/tex] atoms.
The number of atoms consisting in 127.08 grams of Copper has been 12.046 [tex]\rm \times\;10^2^3[/tex] atoms.
For more information about the number of atoms, refer to the link:
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