Convert ml/L to micro M

[Nite]

Hello i want to know what is the way to convert ml/ L to micro M, i have 6.303 ml/L of O2 in situ i need to covert it to micro M.

[JohnS]

Hello i want to know what is the way to convert ml/ L to micro M, i have 6.303 ml/L of O2 in situ i need to covert it to micro M.

Regardless of actual temperature, the O2 is assumed to be at standard temperature and pressure so molar volume is 22.4 L/mol or 22.4 mL/mmol
6.303 mL/L x 1 mmol/22.4 mL = .2814 mmol/L or 281.4 µmol/L (aka M).

See this link for details: https://ocean.ices.dk/Tools/UnitConversion.aspx