Consider a buffer solution that contains 0.25 MC6H4(CO2H)(CO2K) and0.15 M C6H4(CO2K)2.pKa(C6H4(CO2H)CO2-)=5.41.
1. Calculate its pH
2. Calculate the change in pH if 0.140 g of solid NaOH is addedto 190 mL of this solution.
3. If the acceptable buffer range of the solution is ±0.10 pHunits, calculate how many moles of H3O+ canbe neutralized by 250 mL of the initial buffer.
