A soft drink was bottled with a partial pressure of  of 3 bar over the liquid at room temperature. The partial pressure of   over the solution approaches a value of 30 bar when 44g of   is dissolved in 1 kg of water at room temperature. The approximate pH of the soft drinking …..  

(First dissociation constant of  ${\text{H}}_2{\text{CO}}_3=4.0\times {10}^{-7}; \log 2=0.3$ density of the soft drink 1 g