1.6moles
The formula for calculating the molarity of a solution is expressed according to the equation:
[tex]molarity=\frac{moles}{volume}[/tex]Given the following parameters
volume of solution = 400mL = 0.4L
molarity of the solution = 4M
Determine the moles present
[tex]\begin{gathered} moles=molarity\times volume \\ moles=\frac{4mol}{L}\times0.4L \\ moles=1.6moles \end{gathered}[/tex]Hence the number of moles present is 1.6moles
