$[$References$]$

When air pollution is high, ozone $(O_3)$ contents can reach $0\mathrm{.}60ppm($i$.$e$.,0\mathrm{.}60$mol ozone per million mol air$).$ How many molecules of ozone are present per liter of polluted air if the barometric pressure is $754mmHg$ and the temperature is $75F?$

molecules

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