Calculate the osmotic pressure at 25°C across a semipermeable membrane separating seawater (1.14 M total particles) from a 0.503 M solution of aqueous NaCl.

The osmotic pressure is 24.6 atm

Explanation:

π = M. R. T. i → Formula for osmotic pressure

i = 2 ⇒ NaCl → Na⁺ + Cl⁻

i means Van't Hoff factor, which indicates the numbers of ions dissolved, by the stoichiometry.

R → Universal gases constant

T→ T° in K → T°C + 273 → 25°C + 273 = 298K

π = Osmotic pressure

Let's replace data given ⇒ π = 0.503 mol/L. 0.082L. atm/mol. K. 298K. 2

π = 24.6 atm