Chemistry Question from JEE Main 2025 · 4 April, Shift 2

Sea water, which can be considered as a $6 \, \text{M}$ solution of NaCl, has a density of $2 \, \text{g mL}^{-1}$. The concentration of dissolved oxygen (O$_2$) in sea water is $5.8 \, \text{ppm}$. Then the concentration of dissolved oxygen (O$_2$) in sea water, in $x \times 10^{-4} \, \text{m}$. $x$ = _____. (Nearest integer)

Given: Molar mass of NaCl is $58.5 \, \text{g mol}^{-1}$ Molar mass of O$_2$ is $32 \, \text{g mol}^{-1}$.