Determination of the dissociation constant of a weak acid chegg. In this case, pH of the solution is registered with a combined pH electrode during the titration, resulting a titration curve, similar to the one, presented in the next figure. OBJECTIVE This lab will introduce you to the concept of pH titrations. Science Chemistry Chemistry questions and answers EXPERIMENT 25 REPORT SHEET Determination of the Dissociation Constant of a Weak Acid B. 0 19. 08 14. 302 0. 0 13. Question: Lab 9: Determination of the Dissociation Constant of a Weak Acid Determination of K, for a weak acid in water: A weak acid, HA, dissociates into H' ions and the conjugate base, A ions, as shown in the following equilibrium equation: HAH+ A Equation (1) The equilibrium constant, sometimes called ionization constant or dissociation Question: c. Question: Experiment Determination of the Dissociation Constant of a Weak Acid Objective Experimentally determine the dissociation constant for an unknown weak acid using pH measurements Introduction The Bronstead-Lowry definition of an acid is that it is a proton (H") donor, while the definition of a base is a proton (H") acceptor. Standardization of Sodium Hydroxide (NaOH) Solution Trial 1 Trial 2 Mass of bottle + KHP 28. j7p4 kk0ercbf uslk 1slj ihpm vug aat hec9 b1iqx5 vo3c