4. What is the osmolarity of 3M Fe2(SO4)3 solution (Show calculations ; write the units too)?

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Question

Answer 1

Answer #1

Osmolarity refers to the concentration of all osmotically active solute particles in a solution. It is expressed as osmol/ litre

Molarity is the number of moles of a solute dissolved per litre of a solution. It is expressed as mol/litre.

3M Fe2(SO4)3 is given

Total number of osmotically active particles- 5

2 (Fe)^+3 particles+ 3 (SO4)^-2 are present.

Molarity of each particle is 3M.

Osmolarity= Molarity× number of particles

Osmolarity= 3×5

= 15osmol/ L

Answer 2

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