Fractional Precipitation Pogil: Answer Key 2021

): The equilibrium constant for a solid substance dissolving in an aqueous solution. Used to determine if a precipitate will form. , a precipitate forms. , the solution remains unsaturated.

[Added Ion]=Ksp[Ion already in solution]open bracket cap A d d e d space cap I o n close bracket equals the fraction with numerator cap K sub s p end-sub and denominator open bracket cap I o n space a l r e a d y space i n space s o l u t i o n close bracket end-fraction fractional precipitation pogil answer key 2021

A major part of the 2021 POGIL involves determining how much of the first ion remains when the second ion begins to precipitate. ): The equilibrium constant for a solid substance

The substance with the lower required concentration of the precipitating agent will fall out of solution first. Common Pitfall: Don't just look at the Kspcap K sub s p end-sub , the solution remains unsaturated

value. You must calculate the concentration of the added ion needed for each potential precipitate. 2. Calculating Minimum Concentration