Solutions of BaCl2 and NaOH were mixed until a certain amount of precipitate was formed. The equilibrium concentration of Ba2+ in the combined solution above the precipitate was found to be 0.50 M. What is the concentration of the OH– ions in that solution? The solubility product constant of Ba(OH)2 is Ksp = 5.0 × 10–3. A. 0.20 M B. 0.10 M C. 0.020 M D. 0.14 M E. 0.050 M

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Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for