Respuesta :
Given :
12.9 mol of Au.
To Find :
How many atoms are in 12.9 moles Au.
Solution :
We know, 1 mol of any element/molecules contains [tex]6.022\times 10^{23}\ atoms/mol[/tex].
Number of atoms in 12.9 moles of Au is :
[tex]n = 12.9 \times 6.022\times 10^{23}\ atoms\\\\n = 7.77\times 10^{24}\ atoms[/tex]
Therefore, number of atoms in 12.9 moles of Au is [tex]7.77\times 10^{24}\ atoms[/tex].
Hence, this is the required solution.
Answer:
amy what happen to your old account and the answer is c
Explanation: