A solution of weak acid $HA$ containing $0.01$ moles of acid per litre of solutions has $pH = 4$. The percentage degree of ionisation of the acid and the ionisation constant of acid are respectively.
$1\% ,\,{10^{ - 6}}$
$0.01\% ,\,{10^{ - 4}}$
$1\% ,\,{10^{ - 4}}$
$0.01\% ,\,{10^{ - 6}}$
Write characteristic and uses of weak base equilibrium constant ${K_b}$.
A weak base $MOH$ of $0.1\,N$ concentration shows a $pH$ value of $9$ . What is the percentage degree of ionization of the base ? .......$\%$
The concentration of $[{H^ + }]$ and concentration of $[O{H^ - }]$ of a $ 0.1$ aqueous solution of $2\%$ ionised weak acid is [Ionic product of water $ = 1 \times {10^{ - 14}}]$
The percentage of pyridine $(C_5H_5N)$ that forms pyridinium ion $(C_5H_5N^+H)$ in a $0.10\, M$ aqueous pyridine solution ($K_b$ for $C_5H_5N = 1.7 \times 10^{-9}$) is
Equal volumes of three acid solutions of $pH \,3, 4$ and $5$ are mixed in a vessel. .........$ \times 10^{-4} \,M$ will be the $H^+$ ion concentration in the mixture ?