Final volume is 400 mL
<span>The moles in MgSO4 is 0.00788 </span><span>mL
</span>
The new concentration is 0.197
Just took it, Hydrogen bonds
THIS IS C. I HOPE THIS HELPS YOU
Explanation:
It is known that the value of Avogadro's number is
.
Therefore, calculate moles of gold atoms as follows.
Moles of gold atom = 
= 
=
mol
= 1.99 mol
Thus, we can conclude that 1.99 mol of gold atoms are equivalent to
atoms.