A solution is prepared by mixing \( 0.01 \) mol each of \( \mathrm{H_2CO_3} \), \( \mathrm{NaHCO_3} \), \( \mathrm{Na_2CO_3} \), and \( \mathrm{NaOH} \) in \( 100 \ \mathrm{mL} \) of water. pH of the resulting solution is _______.
\([ \text{Given : } pK_{a_1} \text{ and } pK_{a_2} \text{ of } \mathrm{H_2CO_3} \text{ are } 6.37 \text{ and } 10.32, \text{ respectively; } \log 2 = 0.30 ]\)
