AB_2 is 10% dissociated in water to A^{2+} an | vedclass

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

Question

(D) For the dissociation reaction: $AB_2 \rightleftharpoons A^{2+} + 2B^-$,the number of ions produced per formula unit is $n = 3$.Given the degree of

Vedclass · Accepted Answer

$106$

Vedclass · Answer

(D) For the dissociation reaction: $AB_2 ightleftharpoons A^{2+} + 2B^-$,the number of ions produced per formula unit is $n = 3$.Given the degree of dissociation $\alpha = 10\% = 0.1$.The van't Hoff factor $i$ is calculated as $i = 1 + (n-1)\alpha = 1 + (3-1)0.1 = 1 + 0.2 = 1.2$.The elevation in boiling point is given by $\Delta T_b = i \cdot K_b \cdot m$.Substituting the values: $\Delta T_b = 1.2 	imes 0.5 	ext{ K kg mol}^{-1} 	imes 10.0 	ext{ mol kg}^{-1} = 6 	ext{ K}$ (or $6^\circ C$).The boiling point of the solution is $T_b = T_b^\circ + \Delta T_b = 100^\circ C + 6^\circ C = 106^\circ C$.

Similar Questions

Which of the following salts has the same value of Van't Hoff factor $i$ as that of $K_4[Fe(CN)_6]$?

Maximum depression in freezing point is caused by

Among the given solutions,which one has the highest boiling point under similar conditions?

The boiling point of $0.001 \ M$ aqueous solutions of $NaCl$,$Na_{2}SO_{4}$,$K_{3}PO_{4}$ and $CH_{3}COOH$ should follow the order.

Which of the following will have the lowest vapor pressure?

Vedclass Test Series

Exam Paper Generator

Online Exam Module