Fractional Precipitation Pogil Answer Key Best Hot! Today

“Completely” usually means ([\textPb^2+] < 10^-5\ \textM) or (10^-6\ \textM).

Compare [CO₃²⁻] needed for each: For Ba²⁺: [CO₃²⁻] = Ksp(BaCO₃) / [Ba²⁺] = (2.6×10⁻⁹) / 0.010 = 2.6×10⁻⁷ M For Ca²⁺: [CO₃²⁻] = (4.8×10⁻⁹) / 0.010 = 4.8×10⁻⁷ M Since 2.6×10⁻⁷ M < 4.8×10⁻⁷ M, BaCO₃ precipitates first. fractional precipitation pogil answer key best