Which of the following would have the highest | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

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

Vedclass · Accepted Answer

Decimolar aluminium sulphate

Vedclass · Answer

(A) Osmotic pressure $(\pi)$ is a colligative property given by $\pi = iCRT$,where $i$ is the van't Hoff factor,$C$ is the molar concentration,$R$ is the gas constant,and $T$ is the temperature.Since all solutions are decimolar $(C = 0.1 \ M)$,the osmotic pressure depends on the van't Hoff factor $(i = 1 + (n-1)\alpha)$.For $90\%$ dissociation,$\alpha = 0.9$.$(A)$ $Al_2(SO_4)_3 \rightarrow 2Al^{3+} + 3SO_4^{2-}$,$n = 5$,$i = 1 + (5-1)(0.9) = 4.6$.$(B)$ $BaCl_2 \rightarrow Ba^{2+} + 2Cl^-$,$n = 3$,$i = 1 + (3-1)(0.9) = 2.8$.$(C)$ $Na_2SO_4 \rightarrow 2Na^+ + SO_4^{2-}$,$n = 3$,$i = 1 + (3-1)(0.9) = 2.8$.$(D)$ Mixing $(B)$ and $(C)$ results in a solution with lower concentration of individual ions compared to $(A)$.Thus,$Al_2(SO_4)_3$ provides the maximum number of ions,resulting in the highest osmotic pressure.

Which of the following would have the highest osmotic pressure? (Assume that all salts are $90\%$ dissociated.)

Similar Questions

What is a "semi-permeable membrane"?

Which of the following statements regarding isotonic solutions is $NOT$ correct?

Blood has been found to be isotonic with

Calculate the osmotic pressure of a $0.2 \ M$ aqueous $KCl$ solution at $0^{\circ} C$ if the van't Hoff factor for $KCl$ is $1.83$. $[R = 0.082 \ dm^3 \ atm \ mol^{-1} \ K^{-1}]$ (in $atm$)

Assume a living cell with $0.9 \% (\omega / \omega)$ of glucose solution (aqueous). This cell is immersed in another solution having equal mole fraction of glucose and water. (Consider the data up to the first decimal place only). The cell will :

Vedclass Test Series

Exam Paper Generator

Online Exam Module