(Solved): Mercury poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts ...

Mercury poisoning is a debilitating disease that is often fatal. In the human body, mercury reacts with essential enzymes leading to irreversible inactivity of these enzymes. If the amount of mercury in a polluted lake is \( 0.5 \mu \mathrm{g} \mathrm{Hg} / \mathrm{mL} \) (this is an exact measurement), what is the total mass in kilograms of mercury in the lake? (The lake has a surface area of \( 100.6 \mathrm{mi}^{2} \) and and average depth of \( 15 \mathrm{ft} \).) Hint: Pay attention to the Significant Figures rules. Make sure to write the final unit. Make sure to upload your HANDWRITTEN work in the next problem or your answer is VOID! \[ \begin{array}{l} 6 \times 10^{5} \mathrm{~kg} \\ \hline 9.9 \times 10^{4} \mathrm{~kg} \\ \hline 2.0 \times 10^{-5} \mathrm{~kg} \\ \hline 6.0 \times 10^{5} \mathrm{~kg} \end{array} \] None of the above responses apply.