Sea water, which can be considered as a 6 molar (6 M ) solution of NaCl, has a density of 2 g mL^-1. The concentration of dissolved oxygen ( O_2) in…

Sea water, which can be considered as a $\displaystyle 6$ molar $\displaystyle (6 \mathrm{M})$ solution of NaCl , has a density of $\displaystyle 2 \mathrm{~g} \mathrm{~mL}^{-1}$. The concentration of dissolved oxygen $\displaystyle \left(\mathrm{O}_2\right)$ in sea water is $\displaystyle 5.8$ ppm. Then the concentration of dissolved oxygen $\displaystyle \left(\mathrm{O}_2\right)$ in sea water, is $\displaystyle x \times 10^{-4} \mathrm{~m}$. $\displaystyle x=$ $\displaystyle \_\_\_\_$. (Nearest integer) Given : Molar mass of NaCl is $\displaystyle 58.5 \mathrm{~g} \mathrm{~mol}^{-1}$ Molar mass of $\displaystyle \mathrm{O}_2$ is $\displaystyle 32 \mathrm{~g} \mathrm{~mol}^{-1}$