Fractional Precipitation Pogil Answer Key Jun 2026

| Ion pair | (K_sp) values | Which precipitates first? | [anion] to start 1st ppt | [anion] to start 2nd ppt | % of 1st ion left when 2nd starts | |----------|----------------|------------------------|------------------------|------------------------|----------------------------------| | AgCl ((K_sp=1.8\times10^-10)), AgI ((8.3\times10^-17)) | ... | ... | ... | ... | ... | | CaF₂ ((3.9\times10^-11)), SrF₂ ((2.9\times10^-9)) | ... | ... | ... | ... | ... |

: The solution is at equilibrium (saturated). Precipitation is just about to begin. fractional precipitation pogil answer key

When working through a "Fractional Precipitation POGIL" assignment, look out for these structural patterns designed to build your critical thinking skills: | Ion pair | (K_sp) values | Which precipitates first

Remember that the "first" precipitate is the one that reaches its Ksp limit at the lowest added reagent concentration. fractional precipitation pogil answer key