Respuesta :
What is molarity?
Molarity is defined as the number of moles of solute per liter of solution.
M = n / V
where
n = no of moles ( 2 mol)
M = Molarity ?
V = volume of solution ( 1 itre)
M = n / V
= 2 mol / 1 litre
= 2 mol/L
What is Osmolarity?
- It is a process of measurement of solute concentration.
- It is number of osmoles (Osm) of solute per litre (L) of solution (osmol/L or Osm/L).
- It is usually written as Osm/L. This resultant number is of higher importance as it allows measurement of the osmotic pressure of a solution and determination of how the solvent will diffuse across a semi-permeable membrane separating two solutions of different osmotic concentration.
Osmolarity = Molarity × number of particles of dissociation (n)
- For ex: Sodium chloride(NaCl) in water dissociates into two particles (Na+ and Cl–) and
- Magnesium chloride (MgCl2) in water dissociates into 3 particles (Mg++ and 2 Cl–)
according to question, FeCl₃ = 1 Fe + 3Cl , where n = 4
Osmolarity = molarity × n
= 2 ×4
= 8 osmol / L
Learn more about Osmolarity at https://brainly.com/question/7498493
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