Which of the following aqueous solutions has | vedclass

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

Question

(C) The boiling point elevation is a colligative property,which depends on the van't Hoff factor $(i)$ of the solute. The formula is $\Delta T_b = i \

Vedclass · Accepted Answer

$0.1 \ M \ K_4[Fe(CN)_6]$

Vedclass · Answer

(C) The boiling point elevation is a colligative property,which depends on the van't Hoff factor $(i)$ of the solute. The formula is $\Delta T_b = i 	imes K_b 	imes m$. Since the molality $(m)$ is the same for all solutions,the solution with the highest van't Hoff factor $(i)$ will have the highest boiling point. $1.$ $KNO_3 ightarrow K^+ + NO_3^-$,$i = 2$. $2.$ $	ext{Urea}$ is a non-electrolyte,$i = 1$. $3.$ $K_4[Fe(CN)_6] ightarrow 4K^+ + [Fe(CN)_6]^{4-}$,$i = 5$. $4.$ $NH_4NO_3 ightarrow NH_4^+ + NO_3^-$,$i = 2$. Comparing the values,$K_4[Fe(CN)_6]$ has the highest $i$ value $(i = 5)$,therefore it has the highest boiling point.

Which of the following aqueous solutions has the highest boiling point?

Similar Questions

$17.4\% \ (W/V)$ solution of potassium sulphate (mol. $wt. = 174$) is isotonic with $4\% \ (W/V)$ aqueous solution of $NaOH$. If $NaOH$ is $100\%$ ionised,the degree of ionisation of potassium sulphate is $........... \ \%$.

Which of the following $0.10 \ m$ aqueous solution will have the lowest freezing point?

We have three aqueous solutions of $NaCl$ labelled as '$A$','$B$' and '$C$' with concentrations $0.1 \ M$,$0.01 \ M$,and $0.001 \ M$ respectively. The value of the Van't Hoff factor for these solutions will be in the order . . . . . . .

In comparison to a $0.01 \ M$ solution of glucose,the depression in freezing point of a $0.01 \ M \ MgCl_2$ solution is (Molecular weight of $MgCl_2 = 95$,molecular weight of glucose $= 180$).

In an aqueous solution of $NaCl$,the mole fraction of the solvent is $0.9$. Then,the relative lowering in vapour pressure will be ......... $atm$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module