Multiple Choice
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.![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](https://d2lvgg3v3hfg70.cloudfront.net/TB5343/11ec76b4_fecf_93ba_9e6f_d7386ce87ce1_TB5343_00.jpg)
Which one of the oxalates precipitates first?
A) BaC2O4
B) Na2C2O4
C) ZnC2O4
D) Ag2C2O4
E) ZnC2O4 and Ag2C2O4 precipitate together
Correct Answer:
Verified
Correct Answer:
Verified
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