A$.$ Draw and label a more detailed flowchart for the process. Do not assume a basis of calculation at this point. ${?}^{****}$ Note: Assume ${?}_4$ is

pure Nickel.

B$.$ Assuming the wastewater leaves the finishing plant at a rate of ${?}_1=1000k\frac{g}{h},$ calculate the flow rate of liquid to the waste

lagoon, ${?}_6(k\frac{g}{h}),$ and the mass fraction of $Ni$ in this liquid, $x_6(kgN\frac{i}{k}g).$

Answers: $m_6=951\mathrm{.}1k\frac{g}{h}$;$x_{6,Ni}=0\mathrm{.}0027$

C$.$ In this case, assume the wastewater leaves the finishing plant at a rate of ${?}_1=7500k\frac{g}{h}.$ Calculate the flow rate of liquid to the

waste lagoon, ${?}_6(k\frac{g}{h}),$ and the mass fraction of $Ni$ in this liquid, $x_6(kgN\frac{i}{k}g).$

Answers: $m_6=7280k\frac{g}{h}$;$x_{6,Ni}=0\mathrm{.}0228$

PLEASE SHOW HOW TO CALCULATE