What is the molar solubility of Al(OH)_3 in 0 | vedclass

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

Question

(D) The dissociation of $Al(OH)_3$ is given by: $Al(OH)_3 \rightleftharpoons Al^{3+} + 3OH^-$$K_{sp} = [Al^{3+}][OH^-]^3$In $0.2 \ M \ NaOH$,the conce

Vedclass · Accepted Answer

$3 	imes 10^{-22}$

Vedclass · Answer

(D) The dissociation of $Al(OH)_3$ is given by: $Al(OH)_3 ightleftharpoons Al^{3+} + 3OH^-$$K_{sp} = [Al^{3+}][OH^-]^3$In $0.2 \ M \ NaOH$,the concentration of $OH^-$ is $0.2 \ M$ (assuming complete dissociation of $NaOH$ and neglecting the contribution from $Al(OH)_3$ due to the common ion effect).Let $s$ be the molar solubility of $Al(OH)_3$.Then $[Al^{3+}] = s$ and $[OH^-] = 0.2 + 3s \approx 0.2$.Substituting these values into the $K_{sp}$ expression:$2.4 	imes 10^{-24} = s(0.2)^3$$2.4 	imes 10^{-24} = s(0.008)$$s = \frac{2.4 	imes 10^{-24}}{0.008} = 3 	imes 10^{-22} \ M$.

Metal sulfide	Solubility product
$A$. $PbS$	$I$. $4.0 \times 10^{-53}$
$B$. $HgS$	$II$. $8.0 \times 10^{-28}$
$C$. $MnS$	$III$. $1.6 \times 10^{-24}$
$D$. $ZnS$	$IV$. $2.5 \times 10^{-13}$

What is the molar solubility of $Al(OH)_3$ in $0.2 \ M \ NaOH$ solution? Given that,the solubility product of $Al(OH)_3 = 2.4 \times 10^{-24}$.

Similar Questions

If the solubility product of $CuS$ is $9 \times 10^{-16}$,then what will be the maximum molarity of $CuS$ in an aqueous solution?

Match the following metal sulfides with their respective solubility product $(K_{sp})$ values:

Metal sulfide Solubility product

$A$. $PbS$ $I$. $4.0 \times 10^{-53}$

$B$. $HgS$ $II$. $8.0 \times 10^{-28}$

$C$. $MnS$ $III$. $1.6 \times 10^{-24}$

$D$. $ZnS$ $IV$. $2.5 \times 10^{-13}$

$A$ precipitate of calcium oxalate $(CaC_2O_4)$ will not dissolve in which of the following?

The solubility product of $CaCO_3$ is $5 \times 10^{-9}$. Its solubility is equal to .......

$A$ precipitate of calcium oxalate will not dissolve in

Vedclass Test Series

Exam Paper Generator

Online Exam Module