$(5$ points$)$ A groundwater was analyzed and found to have the following composition: $pH$

$=7\mathrm{.}0$;$C{a}^{2+}=50m\frac{g}{L}$;$M{g}^{2+}=5m\frac{g}{L}$; biocarbonate concentration $=180m\frac{g}{L}$; carbonic

acid concentration $=100m\frac{g}{L}$ as $CaC{O}_3.$ Construct a bar graph and determine the total

hardness, calcium carbonate hardness, and magnesium carbonate hardness as $CaC{O}_3.$