The solution is 2 L of 0.02 M NaOH. The so | vedclass

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

Question

(A) The solubility product expression for $Zn(OH)_2$ is $K_{sp} = [Zn^{2+}][OH^-]^2$. Given $[OH^-] = 0.02 \ M$ due to the presence of $NaOH$. Substit

Vedclass · Accepted Answer

$2.228 	imes 10^{-11} \ g$

Vedclass · Answer

(A) The solubility product expression for $Zn(OH)_2$ is $K_{sp} = [Zn^{2+}][OH^-]^2$. Given $[OH^-] = 0.02 \ M$ due to the presence of $NaOH$. Substituting the values: $4.5 	imes 10^{-17} = [Zn^{2+}](0.02)^2$. $[Zn^{2+}] = \frac{4.5 	imes 10^{-17}}{4 	imes 10^{-4}} = 1.125 	imes 10^{-13} \ M$. The molar mass of $Zn(OH)_2$ is $65.38 + 2 	imes (16 + 1) = 99.38 \ g/mol$. Amount of $Zn(OH)_2$ in $2 \ L$ solution = $Molarity 	imes Volume 	imes Molar \ Mass = (1.125 	imes 10^{-13} \ mol/L) 	imes 2 \ L 	imes 99.38 \ g/mol = 2.236 	imes 10^{-11} \ g$ (approximately $2.228 	imes 10^{-11} \ g$ depending on atomic mass precision).

The solution is $2 \ L$ of $0.02 \ M \ NaOH$. The solubility product of $Zn(OH)_2$ is $4.5 \times 10^{-17}$. Then how many grams of $Zn(OH)_2$ is maximum soluble in the given $NaOH$ solution?

Similar Questions

The solubility of calcium carbonate $(CaCO_3)$ at $298 \ K$ is $6.4 \times 10^{-5} \ mol \ dm^{-3}$. Calculate the value of solubility product $(K_{sp})$ at the same temperature.

Assign $A$,$B$,$C$,$D$ from the given type of reaction.
$Pb(AcO)_2 + H_2S \longrightarrow PbS \downarrow + 2AcOH$

At $310 \, K$,the solubility of $CaF_{2}$ in water is $2.34 \times 10^{-3} \, g / 100 \, mL$. The solubility product of $CaF_{2}$ is $x \times 10^{-8} \, (mol / L)^{3}$. Find the value of $x$. (Given molar mass: $CaF_{2} = 78 \, g \, mol^{-1}$)

If $K_{sp}$ is the solubility product of $Al(OH)_3$,its solubility is expressed by the formula:

If the concentration of $Ag^{+}$ ions in the saturated solution of $Ag_2CO_3$ is $1.20 \times 10^{-4} \ mol \ L^{-1}$,then find the solubility product of $Ag_2CO_3$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module