Answer:
concentration = 0.044 moles / L
Explanation:
The mass of non electrolyte solute dissolved in water =4.96 grams
The volume of water taken = 485mL = 0.485 L
the temperature = 27°C = 300 K
osmotic pressure = 827 torr = [tex]\frac{827}{760}atm=1.09atm[/tex]
The osmotic pressure is related to molar concentration as:
osmotic pressure = concentration X R X T
Where
R = gas constant = 0.0821 L atm/molK
Putting values
1.09 = concentration X 0.0821 X 300
concentration = 0.044 moles / L