A #5*g# mass of polystyrene exerts an osmotic pressure of #1.21*kPa# at a temperature of #523*K#. What is the molecular mass of the polystyrene?
1 Answer
Explanation:
And thus
Note the dimensional consistency. I changed the pressure into units of atmospheres, because this gives us a better idea of dimensionality. Of course,
And thus,
So, finally,
How many formula units of