In the standard POGIL scenario, contains a mixture of two cations—typically Zinc ( Zn2+cap Z n raised to the 2 plus power ) and Copper(II) ( Cu2+cap C u raised to the 2 plus power ) —at equal concentrations (e.g.,
of its original value before the second ion begins to precipitate. Common POGIL Example Scenarios Lower Kspcap K sub s p end-sub Compound First to Precipitate Zn2+cap Z n raised to the 2 plus power and Cu2+cap C u raised to the 2 plus power with CO32−cap C cap O sub 3 raised to the 2 minus power Copper(II) Carbonate CuCO3cap C u cap C cap O sub 3 Cl−cap C l raised to the negative power and CrO42−cap C r cap O sub 4 raised to the 2 minus power with Ag+cap A g raised to the positive power Silver Chloride ( ) AgClcap A g cap C l Ba2+cap B a raised to the 2 plus power and Sr2+cap S r raised to the 2 plus power with SO42−cap S cap O sub 4 raised to the 2 minus power Barium Sulfate ( ) BaSO4cap B a cap S cap O sub 4 Where to Find Full Resources fractional precipitation pogil answer key 2021
The POGIL activity focuses on using Kspcap K sub s p end-sub and the reaction quotient ( ) to separate metal ions like Zn2+cap Z n raised to the 2 plus power Cu2+cap C u raised to the 2 plus power from a solution. In the standard POGIL scenario, contains a mixture
precipitates first, with a typical goal of 99.9% ion removal. For a comprehensive review, see Studocu . What is fractional precipitation? #bepharmawise For a comprehensive review, see Studocu
Finding a reliable for the 2021 version can be a challenge, as these Process Oriented Guided Inquiry Learning (POGIL) activities are designed to encourage student discovery rather than rote memorization.
In fractional precipitation, we add a reagent that reacts with multiple ions in the solution. The ion that forms the least soluble salt
, the less soluble the substance is. In a fractional precipitation scenario, the compound with the lowest Kspcap K sub s p end-sub