Determine the osmotic pressure of a saline solution (NaCl) at a temperature of 22.0oC whose concentration is 2.0 x 10-3 M.?

1 Answer
Junaid Mirza
Apr 23, 2018

#"0.0969 atm"#

Explanation:

Osmotic pressure (#pi#) is given by

#π = "iCRT"#

where

  • #"i ="# Van’t Hoff factor (#2# for #"NaCl"#)
  • #"C ="# Concentration
  • #"R ="# Gas constant
  • #"T ="# Absolute Temperature

#π = 2 × 2 × 10^-3\ "M" × 0.0821\ "L atm"/"mol K" × "295 K = 0.0969 atm"#

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