Consider a weak base ‘B’ of \( pK_b = 5.699 \). ‘\( x \)’ \( \mathrm{mL} \) of \( 0.02 \, \mathrm{M} \) \( \mathrm{HCl} \) and ‘\( y \)’ \( \mathrm{mL} \) of \( 0.02 \, \mathrm{M} \) weak base ‘B’ are mixed to make \( 100 \, \mathrm{mL} \) of a buffer of \( \mathrm{pH} \, 9 \) at \( 25^\circ \mathrm{C} \). The values of ‘\( x \)’ and ‘\( y \)’ respectively are:
[Given: \( \log 2 = 0.3010 \), \( \log 3 = 0.4771 \), \( \log 5 = 0.699 \)]
