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 [C₂O₄^2-] increases.

Which one of the oxalates precipitates first?

Question

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 [C₂O₄^2-] increases.

An aqueous solution contains [Ba<sup>2+</sup>] = 5.0 × 10<sup>-5</sup> M,[Ag<sup>+</sup>] = 3.0 × 10<sup>-5</sup> M,and [Zn<sup>2+</sup>] = 2.0 × 10<sup>-7</sup> M.Sodium oxalate is slowly added so that [C<sub>2</sub>O<sub>4</sub><sup>2-</sup>] increases. Which one of the oxalates precipitates first? A) BaC<sub>2</sub>O<sub>4 </sub> B) Na<sub>2</sub>C<sub>2</sub>O<sub>4 </sub> C) ZnC<sub>2</sub>O<sub>4 </sub> D) Ag<sub>2</sub>C<sub>2</sub>O<sub>4 </sub> E) ZnC<sub>2</sub>O<sub>4</sub> and Ag<sub>2</sub>C<sub>2</sub>O<sub>4 </sub>precipitate together

Which one of the oxalates precipitates first?

Quizplus · Accepted Answer

The Answer of 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 [C₂O₄^2-] increases. Which one of the oxalates precipitates first?

An Aqueous Solution Contains [Ba2+] = 5

An Aqueous Solution Contains [Ba²⁺] = 5