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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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lovedarian lovedarian
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An aqueous solution contains [Ba2+] = 5.0 × 10-5 M, [Ag+] = 3.0 × 10-5 M, and [Zn2+] = 2.0 × 10-7 M. Sodium oxalate is slowly added so that [C2O42-] increases.

Salt BaC2O4 ZnC2O4 Ag2C2O4
Ksp 1.5 × 10-8 1.35 × 10-9 1.1 × 10-11

Which one of the oxalates precipitates first?

▸ BaC2O4

▸ Na2C2O4

▸ ZnC2O4

▸ Ag2C2O4

▸ ZnC2O4 and Ag2C2O4 precipitate together
Textbook 
General Chemistry: Principles and Modern Applications

General Chemistry: Principles and Modern Applications


Edition: 11th
Authors:
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2 years ago
A solution contains [Ba2+] = 5.0 × 10-5 M, [Ag+] = 3.0 × 10-5 M, and [Zn2+] = 2.0 × 10-7 M. Sodium oxalate is slowly added so that [C2O42-] increases. Salt BaC2O4 ZnC2O4 Ag2C2O4 Ksp 1.5 × 10-8 1.35 × 10-9 1.1 × 10-11 What is the concentration of the first cation to precipitate when the second cation just begins to precipitate?
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Anonymous
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2 years ago
Quote from: crazzibear2 (2 years ago)
A solution contains [Ba2+] = 5.0 × 10-5 M, [Ag+] = 3.0 × 10-5 M, and [Zn2+] = 2.0 × 10-7 M. Sodium oxalate is slowly added so that [C2O42-] increases. Salt BaC2O4 ZnC2O4 Ag2C2O4 Ksp 1.5 × 10-8 1.35 × 10-9 1.1 × 10-11 What is the concentration of the first cation to precipitate when the second cation just begins to precipitate?
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