Chemistry · 2020
JEE Main · 9 January 2020, Shift 2 · Q47
30 mg of O_2 is dissolved into a liter of sea water of density 1.03 g / mL. The concentration of O_2 in ppm is \ \ \ \.
$\displaystyle 30$ mg of $\displaystyle \mathrm{O}_2$ is dissolved into a liter of sea water of density $\displaystyle 1.03 \mathrm{~g} / \mathrm{mL}$. The concentration of $\displaystyle \mathrm{O}_2$ in ppm is \_\_\_\_.
Official answer
10
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