04:14
Chemistry: The Molecular Nature of Matter and Change
The gravitational force exerted by an object is given by $F=m g,$ where $F$ is the force in newtons, $m$ is the mass in kilograms, and $g$ is the acceleration due to gravity $\left(9.81 \mathrm{m} / \mathrm{s}^{2}\right) .$
(a) Use the definition of the pascal to calculate the mass (in $\mathrm{kg}$ ) of the atmosphere above 1 $\mathrm{m}^{2}$ of ocean.
(b) Osmium $(Z=76)$ is a transition metal in Group 8 $\mathrm{B}(8)$ and has the highest density of any element $(22.6 \mathrm{g} / \mathrm{mL})$ . If an osmium column is 1 $\mathrm{m}^{2}$ in area, how high must it be for its pressure to equal atmospheric pressure? [Use the answer from part (a) in your calculation. $]$