Answer: 32 mol HCI
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.
[tex]Molarity=\frac{n}{V_s}[/tex]
where,
n = moles of solute
[tex]V_s[/tex] = volume of solution in Liters
Now put all the given values in the formula of molarity, we get
[tex]4.0M=\frac{moles}{8.0L}[/tex]
[tex]moles={4.0M\times 8.0L}=32mol[/tex]
Therefore, the moles of HCI needed to prepare 8.0 liters of a 4.0 M solution of HCI are 32.
