2023/06/14 by Hilary Onbey, Kaitlin Stringfellow, Rajeev B. Dabke +2
Chemistry · Chemical Engineering · #Electrochemical Analysis and Applications #Various Chemistry Research Topics #Analytical Chemistry and Sensors
paper · pdf · doi:10.1021/acs.jchemed.2c01251
High Resolution Image Download MS PowerPoint Slide The use of a multicompartment electrochemical cell for the potentiometric determination of solubility product constants of aqueous I –, Br –, SCN –, and Cl – salts of silver is presented. An electrochemical cell presented in this study contained multiple half-cells made of disposable drinking straws, a silver wire electrode housed in a plastic syringe, and a reference electrode. An agreement between the solubility product constant values of AgI, AgBr, AgSCN, and AgCl obtained by the students (7.84 × 10 –17, 4.34 × 10 –13, 9.01 × 10 –13, and 1.44 × 10 –10 ) and the literature values (8.52 × 10 –17, 5.35 × 10 –13, 1.03 × 10 –12, and 1.77 × 10 –10, respectively) underscored the feasibility of using the cell for the determination of solubility product constants.