In The Titration Of A Weak Acid With A Strong Base, There Is A Region In The Titration Curve Where The Solution Being Titrated Is A Buffer Solution. We Call This The "Buffer Region". We Will Be Discussing This During Our Titration Curves Lab Activity. We Can Calculate The PH Of A Buffer Using The Henderson-Hasselbalch Equation Given Below: PH PKa + Log

 

In the titration of a weak acid with a strong base, there is a region in the titration curve where the solution being titrated is a buffer solution. We call this the "Buffer Region". We will be discussing this during our Titration Curves lab activity. We can calculate the pH of a buffer using the Henderson-Hasselbalch equation given below: [base] pH = pKa + log [acid] In this equation pk is the pK value of the weak acid, [acid] is the molar concentration of the acid in the buffer solution, and [base] is the molar concentration of the conjugate base of the weak acid in the buffer solution. Consider the titration of acetic acid with sodium hydroxide. 1. Give the chemical formula for the conjugate base of acetic acid. Please use correct superscripts and subscripts for the formula. 2. What will be the pH of the solution when [base] = [acid]? The K of acetic acid is 1.8x10-5. (Please give the numerical value of the pH to two digits after the decimal point.)