Consider a solution that is 2.0×102 M in Fe² and 1.4×102 M in Mg2+ (Kap for FeCO3 is 3.07 x 10-11 and Kp for MgCO3 is 6.82 x 10 %) Show Transcribed Text If potassium carbonate is used to selectively precipitate one of the cations while leaving the other cation in solution, which cation will precipitate first? O Fe O Mg Show Transcribed Text 3 What minimum concentration of K₂CO3 is required to cause the precipitation of the cation that precipitates first? Express your answer using two significant figures. VE ΑΣΦ [K₂CO3] = ? M

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Chapter1: Chemical Foundations
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Consider a solution that is 2.0×10-2 M in Fe²+ and 1.4x10-2 M in Mg²+. (Kap for FeCO3 is 3.07 x 10-¹1 and Kap for
MgCO3 is 6.82 x 10-6)
Show Transcribed Text
If potassium carbonate is used to selectively precipitate one of the cations while leaving the other cation in solution, which
cation will precipitate first?
O Fe²+
o Myột
Show Transcribed Text
What minimum concentration of K₂CO3 is required to cause the precipitation of the cation that precipitates first?
Express your answer using two significant figures.
197| ΑΣΦ
[K₂CO3] =
Show Transcribed Tort
?
M
Transcribed Image Text:Consider a solution that is 2.0×10-2 M in Fe²+ and 1.4x10-2 M in Mg²+. (Kap for FeCO3 is 3.07 x 10-¹1 and Kap for MgCO3 is 6.82 x 10-6) Show Transcribed Text If potassium carbonate is used to selectively precipitate one of the cations while leaving the other cation in solution, which cation will precipitate first? O Fe²+ o Myột Show Transcribed Text What minimum concentration of K₂CO3 is required to cause the precipitation of the cation that precipitates first? Express your answer using two significant figures. 197| ΑΣΦ [K₂CO3] = Show Transcribed Tort ? M
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