A student adds KF to 867 mL of a 0.0020 M Mg(NO3)2 solution. What is the minimum quantity of moles of KF the student must add to the solution in order to begin precipitating MgF2?  Ksp = 3.7 × 10-8 for MgF2.  MgF2 completely dissociates into Mg2+ and F- ions.

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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