The degree of dissociation $(\alpha )$ of $PCl_5$ obeying the equilibrium; is $PC{l_5}\, \rightleftharpoons \,PC{l_3}\, + \,C{l_2}$ related to the pressure at equlibrium by
$\alpha \, \propto \,P$
$\alpha \, \propto \,\frac{1}{{\sqrt P }}$
$\alpha \, \propto \,\frac{1}{{{P^2}}}$
$\alpha \, \propto \,\frac{1}{{{P^4}}}$
Accumulation of lactic acid $(HC_3H_5O_3),$ a monobasic acid in tissues leads to pain and a feeling of fatigue. In a $0.10\, M$ aqueous solution, lactic acid is $3.7\%$ dissociates. The value of dissociation constant, $K_a,$ for this acid will be
Which among the given acids has lowest $pKa$ value
Write characteristics and uses of ${K_a}$ value.
$0.2$ molar solution of formic acid is ionized $3.2\%$. Its ionization constant is
Calculate the $pH$ of a $0.10 \,M$ ammonia solution. Calculate the pH after $50.0 \,mL$ of this solution is treated with $25.0 \,mL$ of $0.10 \,M$ $HCl$. The dissociation constant of ammonia, $K_{b}=1.77 \times 10^{-5}$