Question

How many atoms are in 12.9 mol Au?

Answer 1

Answer:

amy what happen to your old account and the answer is c

Explanation:

Answer 2

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 $6.022\times 10^{23}\ atoms/mol$.

Number of atoms in 12.9 moles of Au is :

$n = 12.9 \times 6.022\times 10^{23}\ atoms\\\\n = 7.77\times 10^{24}\ atoms$

Therefore, number of atoms in 12.9 moles of Au is $7.77\times 10^{24}\ atoms$.

Hence, this is the required solution.