Measurement Of Ph

- First, calculate the moles of NaOH added: - The total volume of the solution after mixing is: - The moles of HCl are: - Since NaOH neutralizes HCl, the remaining moles of NaOH are: - The weak acid HA dissociates, and the pH is determined by the concentration of ions, which are affected by the dissociation constant . The calculation shows that the pH of the resultant solution is approximately 5.7.