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(C) Osmotic pressure $(\pi)$ is a colligative property given by the formula $\pi = iCRT$,where $i$ is the van't Hoff factor,$C$ is the molar concentra

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$1 \ M \ FeCl_3$

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(C) Osmotic pressure $(\pi)$ is a colligative property given by the formula $\pi = iCRT$,where $i$ is the van't Hoff factor,$C$ is the molar concentration,$R$ is the gas constant,and $T$ is the temperature.Since $C$,$R$,and $T$ are identical for all solutions,$\pi$ depends directly on the van't Hoff factor $(i)$.For $1 \ M \ BaCl_2$,$i = 3$ (dissociates into $Ba^{2+} + 2Cl^-$).For $1 \ M \ NaCl$,$i = 2$ (dissociates into $Na^+ + Cl^-$).For $1 \ M \ FeCl_3$,$i = 4$ (dissociates into $Fe^{3+} + 3Cl^-$).For $1 \ M \ glucose$,$i = 1$ (does not dissociate).Since $FeCl_3$ has the highest van't Hoff factor $(i = 4)$,it will have the highest osmotic pressure.

Under identical conditions,which solution has the highest osmotic pressure?

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