A water containing 1.0*10^-4 mol CO2 liter^-1 and having an alkalinity of 2.5*10^-4 eq liter^-1 has a pH of 6.7. The pH is to be raised to pH 8.3 with NaOH.
A.) How many moles of NaOH per liter of water are needed for this pH adjustment? (pK1=6.3 and pK2=10.3)
B.) How many moles of lime (Ca(OH)2) would be required?