$(5$ points$)$ Your client has a holding tank that contains $100,000$ liters of water with a copper concentration of $9m\frac{g}{L}.$ They need to bring the concentration down to $3\mathrm{.}5m\frac{g}{L}$ in order to discharge it$.$ You decide to do this using direct$-$addition adsorption. You purchase a commercial adsorbent with a K value of $1\mathrm{.}25{10}^{-2}.$ Using a value of $0\mathrm{.}1$ for $\frac{1}{n},$ use the Freundlich Isotherm to determine how many kilograms of adsorbent you will need to add to hit the target concentration. Do your calculations on the attached graph paper.

$($NOTE: Don't be scared by the wording of this question. It is stated as an industrial application, but it is exactly what you did in the homework$).$