Write the characteristics and uses of the weak base equilibrium constant $K_{b}$.

(N/A) $(i)$ $A$ higher value of $K_{b}$ indicates a stronger base.
$(ii)$ $K_{b}$ is a dimensionless quantity.
$(iii)$ $K_{b}$ is used to calculate the concentration of $[OH^{-}]$ ions for a weak base,which is then used to determine the $pOH$.
$(iv)$ The degree of ionization $(\alpha)$ of a base can be calculated using the value of $K_{b}$.
$(v)$ $pK_{b}$ is calculated using the value of $K_{b}$ as $pK_{b} = -\log(K_{b})$. $A$ higher $pK_{b}$ value indicates a weaker base.

$K_{b}$	$1 \times 10^{-1}$	$1 \times 10^{-2}$	$1 \times 10^{-3}$
$pK_{b}$	$+1$	$+2$	$+3$