Chemistry - Ionic Equilibrium Question with Solution | TestHub

The pH of blood stream is maintained by a proper balance of${\text{H}}_{\text{2}}{\text{CO}}_{\text{3}}$and$\mathrm{N}\mathrm{a}\mathrm{H}\mathrm{C}{\mathrm{O}}_3$concentration. What volume of 5M$\mathrm{N}\mathrm{a}\mathrm{H}\mathrm{C}{\mathrm{O}}_3$solution should be mixed with 10 ml sample of blood which is 2 M in${\mathrm{H}}_2\mathrm{C}{\mathrm{O}}_3$in order to maintain a pH of$7.4({\mathrm{K}}_{\mathrm{a}}$for${\mathrm{H}}_2\mathrm{C}{\mathrm{O}}_3$in blood is$4.0\times 10^{-7})$?