How do you find pH if given osmotic pressure and temperature?

Find the molar concentration
To solve for , you need to have the molar concentration of the substance. Then, using , find the concentration of hydrogen.
To find the molar concentration of the substance, just derive the formula for osmotic pressure:
##pi=MRT##
where:
##pirArr##osmotic pressure in atmospheres
##MrArr##is the molar conc. or in moles per liter
##RrArr##is the molar constant with a value of ##0.0821(L*atm)/(mol*K)##
##TrArr##is the temperature in Kelvin scale
##:. M=pi/(RT)##