Answer:
7.23x10^23 atoms
Explanation:
1 mole = 6.023x10^23
1.20 mole = 6.023x10^23 x 1.2
= 7.23x10^23 atoms
The atoms present in 1.20 moles of copper is 7.23 × [tex]10^{23}[/tex] atoms.
A chemical element is made up of atoms, which are the basic components of ordinary matter.
Calculation of atoms
Given data:
n = 1.20 moles.
It is known that.
1 mole = 6.023 × [tex]10^{23}[/tex]
So, 1.20 moles = 6.023 × [tex]10^{23}[/tex] × 1.2 = 7.23 × [tex]10^{23}[/tex] atoms.
Therefore, number of atoms in copper will be 7.23 × [tex]10^{23}[/tex] atoms.
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