List the species present in order of increasing concentration in a 0.1 M solution of H₂C₂O₄. A)H₂C₂O₄

Question

List the species present in order of increasing concentration in a 0.1 M solution of H₂C₂O₄. A)H₂C₂O₄< HC₂O₄^- < C₂O₄^2- B)H₂C₂O₄< C₂O₄^2- < HC₂O₄^- C)C₂O₄^2- < HC₂O₄^- < H₂C₂O₄ D)HC₂O₄^- < C₂O₄^2- < H₂C₂O₄ E)C₂O₄^2- < H₂C₂O₄< HC₂O₄^-

Quizplus · Accepted Answer

The species present in the solution are H₂C₂O₄. In this case, the order of increasing concentration would be based on the relative acidic or basic nature of each species. H₂ is an acid, so its concentration will be low in a solution with a pH of 7. C₂ is a weakly basic compound, so its concentration will be higher than the acid. O_{4 is a strong base and will have a higher concentration than the weak base.} has no acidic or basic properties and will be the most common species in the solution as it is not participating in any reactions. Therefore, the correct order of increasing concentration is C₂O₄^2- < HC₂O₄^- < H₂C₂O₄. Out of the given options, the only one matching this order is Option C.

List the Species Present in Order of Increasing Concentration in a 0.1