Fractional Precipitation Pogil Answer Key Best [2021]
3. Step-by-Step Calculation Example Imagine a solution with Cl−cap C l raised to the negative power Br−cap B r raised to the negative power AgNO3cap A g cap N cap O sub 3 Kspcap K sub s p end-sub AgClcap A g cap C l = Kspcap K sub s p end-sub AgBrcap A g cap B r = Step A: Calculate needed for AgBrcap A g cap B r
Equation: $Ag_2CrO_4(s) \rightleftharpoons 2Ag^+(aq) + CrO_4^2-(aq)$ Expression: $K_sp = [Ag^+]^2[CrO_4^2-]$ Calculation: $$[Ag^+]^2 = \fracK_sp[CrO_4^2-] = \frac1.1 \times 10^-120.010 = 1.1 \times 10^-10$$ $$[Ag^+] = \sqrt1.1 \times 10^-10 = \mathbf1.05 \times 10^-5\ M$$ fractional precipitation pogil answer key best
Answer: Ba2+ will precipitate because the concentration of SO42- is greater than 5.5 x 10^-4 M. fractional precipitation pogil answer key best
Answer: 1.1 x 10^-5 M
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