Which one of the following electrolytes has t | vedclass

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

Question

(B) The van't Hoff factor $(i)$ for a $100 \%$ ionised electrolyte is equal to the total number of ions produced per formula unit.For $Al_2(SO_4)_3$:

Vedclass · Accepted Answer

$K_4[Fe(CN)_6]$

Vedclass · Answer

(B) The van't Hoff factor $(i)$ for a $100 \%$ ionised electrolyte is equal to the total number of ions produced per formula unit.For $Al_2(SO_4)_3$: $Al_2(SO_4)_3 \rightarrow 2 Al^{3+} + 3 SO_4^{2-}$. Total ions = $2 + 3 = 5$,so $i = 5$.For $Al(NO_3)_3$: $Al(NO_3)_3 \rightarrow Al^{3+} + 3 NO_3^-$. Total ions = $1 + 3 = 4$,so $i = 4$.For $K_4[Fe(CN)_6]$: $K_4[Fe(CN)_6] \rightarrow 4 K^{+} + [Fe(CN)_6]^{4-}$. Total ions = $4 + 1 = 5$,so $i = 5$.For $K_2SO_4$: $K_2SO_4 \rightarrow 2 K^{+} + SO_4^{2-}$. Total ions = $2 + 1 = 3$,so $i = 3$.For $K_3[Fe(CN)_6]$: $K_3[Fe(CN)_6] \rightarrow 3 K^{+} + [Fe(CN)_6]^{3-}$. Total ions = $3 + 1 = 4$,so $i = 4$.Thus,$K_4[Fe(CN)_6]$ has the same van't Hoff factor as $Al_2(SO_4)_3$.

Which one of the following electrolytes has the same value of van't Hoff factor $(i)$ as that of $Al_2(SO_4)_3$ (if all are $100 \%$ ionised)?

Similar Questions

Mark the correct relationship between the boiling points of very dilute solutions of $BaCl_2$ $(t_1)$ and $KCl$ $(t_2)$,having the same molarity.

The van't Hoff factor $(i)$ for a dilute aqueous solution of the strong electrolyte barium hydroxide is

$A$ centimolar solution of acetic acid is $50 \%$ dissociated at $27^{\circ} C$. The osmotic pressure of the solution (in $atm$) is $\left(R=0.083 \ L \ atm \ K^{-1} \ mol^{-1}\right)$

The Van't Hoff factor will be highest for

$A$ $0.0020 \ m$ aqueous solution of an ionic compound $[Co(NH_3)_5(NO_2)]Cl$ freezes at $-0.00732 \ ^oC.$ Number of moles of ions which $1 \ mol$ of ionic compound produces on being dissolved in water will be
$(K_f = 1.86 \ ^oC/m)$

Vedclass Test Series

Exam Paper Generator

Online Exam Module