$68.$ The drawings below represent aqueous solutions. Solution A is $2\mathrm{.}00L$ of a $2\mathrm{.}00-M$ aqueous solution of copper$($II$)$ nitrate. Solution B is $2\mathrm{.}00L$ of a $3\mathrm{.}00-M$ aqueous solution of potassium hydroxide.

a$.$ Draw a picture of the solution made by mixing solutions A and $B$ together after the precipitation reaction takes place. Make sure this picture shows the correct relative volume compared to solutions A and B$,$ and the correct relative number of ions, along with the correct relative amount of solid formed.

b$.$ Determine the concentrations $($in $M)$ of all ions left in solution $($from part a$)$ and the mass of solid formed.