Fractional Precipitation Pogil Answer Key Best ~upd~ -

| Compound | Solubility (g/100 mL) | | --- | --- | | AgCl | 0.0019 | | Ag2SO4 | 0.83 | | NaCl | 35.6 | | Na2SO4 | 19.5 |

Most fractional precipitation POGIL worksheets feature a classic scenario: a solution contains two halides (such as Cl−cap C l raised to the negative power I−cap I raised to the negative power ) at known concentrations, and silver ions ( Ag+cap A g raised to the positive power

A solution contains 0.1 M Ag+ and 0.1 M Na+ ions. If 0.1 M Cl- is added to the solution, which ion will precipitate first? fractional precipitation pogil answer key best

is the process of separating ions by exploiting differences in their solubility product constants ((K_sp)). The less soluble compound (smaller (K_sp)) precipitates first as you slowly add a reagent.

Ag2CrO4(s)⇌2Ag+(aq)+CrO42−(aq)Ag sub 2 CrO sub 4 open paren s close paren is in equilibrium with 2 Ag raised to the positive power open paren a q close paren plus CrO sub 4 raised to the 2 minus power open paren a q close paren Step 2: Set Up the Kspcap K sub s p end-sub Expressions | Compound | Solubility (g/100 mL) | |

Ksp=[Ag+]2[CrO42−]cap K sub s p end-sub equals open bracket Ag raised to the positive power close bracket squared open bracket CrO sub 4 raised to the 2 minus power close bracket

A solution contains 0.050 M Br⁻ and 0.050 M CrO₄²⁻. Solid Pb(NO₃)₂ is added slowly. (K_sp) PbBr₂ = (6.6 \times 10^-6) (K_sp) PbCrO₄ = (2.8 \times 10^-13) Which precipitates first? At what [Pb²⁺] does the second begin to precipitate? What is [Br⁻] at that moment? (K_sp) PbBr₂ = (6

Most fractional precipitation POGIL activities focus on a few critical models and calculation steps: : The compound with the lower Kspcap K sub s p end-sub