$0.2$ molar solution of formic acid is ionized $3.2\%$. Its ionization constant is
$1 \times {10^{ - 12}}$
$2.1 \times {10^{ - 4}}$
$1.25 \times {10^{ - 6}}$
$1 \times {10^{ - 14}}$
A weak base $MOH$ of $0.1\, N$ concentration shows a $pH$ value of $9$. What is the percentage degree of ionisation of the base ? ......$\%$
A solution of sodium borate has a $pH$ of approximately
For a weak acid $HA$ with dissociation constant ${10^{ - 9}},\,\,pOH$ of its $0.1 \,M$ solution is
What is the $pH$ of the resulting solution when equal volumes of $0.1\, M\, NaOH$ and $0.01\, M\, HCl$ are mixed?
For a weak acid $HA,$ Ostwald's dilution law is represented by the equation