Question

How many moles are in 2.70 X 10 24 atoms of copper (Cu)?

Answer 1

Answer:

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Answer 2

$4.48 moles$ are found in the given atoms of copper.

Explanation:

• "Avogadro's number is defined as the  number of units in one mole of any substance The value of which equals to $6.023$×$10^{23}$

• Given atoms of the copper present is $2.70$ X $10^{24}$

• Moles present in   $2.70$ X $10^{24}$in atoms of copper (Cu) will be equal to

       =$\frac{2.70 X10^{24} }{6.022*10^{23} }$

       =$4.48 moles$

• Moles allows calculating the minimum number of atoms or molecules of an element of a given substance.
• The chemical change occurred in the reaction is the involvement of atoms or molecules.