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A simple determination of the Ag 2 O solubility product, K sp , suitable for introductory, analytical, or physical chemistry courses is presented. Two pH meters are required and 10 -4 mol of AgNO 3 or AgOAc is consumed. The concentration cell, Ag(s) | Ag + (0.001 M) || Ag + (0.001 M) {pH electrode} | Ag(s), is used. The cell potential and pH are monitored as standard 0.1 M NaOH is titrated into the cathode compartment, precipitating Ag 2 O. The cathode pOH, pAg, and pK sp are computed at each point of the titration. The results illustrate theoretical expectation and are in excellent agreement with the literature.

When discussing the scientific method with nonscience majors, readily intelligible examples are hard to find, but critically important.

This school needed to create a chemistry course for those students looking to become police officers, crime scene investigators, law enforcement majors, criminal lawyers, and professional coroner's assistants.

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