What concentration of Ac^- ions will reduce H | vedclass

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

Question

$[A{c^ - }] = 0.036\,M$

$\mathop {HAc}\limits_{0.4(1 - \alpha )} \overset {Ka} \longleftrightarrow \mathop {{H^ + }}\limits_{0.4\,\alpha }  +

Vedclass · Accepted Answer

$0.036\ M$

Vedclass · Answer

$[A{c^ - }] = 0.036\,M$

$\mathop {HAc}\limits_{0.4(1 - \alpha )} \overset {Ka} \longleftrightarrow \mathop {{H^ + }}\limits_{0.4\,\alpha }  + \mathop {A{c^ - }}\limits_{(b + 0.4\,\alpha )} $

$0.4 \alpha=2 	imes 10^{-4}$

$\alpha=5 	imes 10^{-4}$

$\mathrm{K}_{\mathrm{a}}=\frac{\mathrm{b} 	imes 0.4 \alpha}{0.4}=1.8 	imes 10^{-5}$

$\mathrm{b}=\frac{1.8 	imes 10^{-5}}{5 	imes 10^{-4}}=0.036$

What concentration of $Ac^-$ ions will reduce $H_3O^+$ ion to $2 × 10^{-4}\ M$ in $0.40\ M$ solution of $HAc$ ? $K_a (HAc) = 1.8 × 10^{-5}$ ?

Similar Questions

Which oxychloride has maximum $pH$

$0.2$ molar solution of formic acid is ionized $3.2\%$. Its ionization constant is

${K_{C{H_3}COOH}} = 1.9 \times {10^{ - 5}}$. Calculate $pH$ at end point in titration of $0.1$ $M$ $C{H_3}COOH$ and $0.1$ $M$ $NaOH$.

$2\, gm$ acetic acid and $3\, gm$ sodium acetate are present in $100\, ml$. aqueous solution then what will be the $pH$ of solution if ionisation constant of acetic acid is $1.8 \times 10^{-5}$

The hydrogen ion concentration of $0.1\,N$ solution of $C{H_3}COOH,$ which is $30\%$ dissociated, is