A Student Adds 0

question 89

Multiple Choice

A student adds 0.1 mol of oxalic acid and 0.1 mol of sodium dihydrogen phosphate to enough water to make 1.0 L of solution. The following equilibrium is established with the concentrations of the products greater than the concentrations of the reactants. Which of the statements about the equilibrium system is correct? H₂C₂O₄(aq) + H₂PO₄(aq) ⇄ HC₂O₄(aq) + H₃PO₄(aq)

• A)Oxalic acid is a weaker acid than phosphoric acid.
• B)The hydrogen oxalate anion, HC ₂O ₄, is a stronger base than the dihydrogen phosphate anion, H ₂PO ₄.
• C)Phosphoric acid is a weaker acid than oxalic acid.
• D)The dihydrogen phosphate anion, H ₂PO ₄ ⁻, is a stronger acid than oxalic acid.
• E)Water is a stronger acid than either oxalic or phosphoric acids.

---

Definitions:

Disproportionately Positive

This term may refer to an overly or excessively positive assessment or outcome relative to expectations or norms, but without context, its specific meaning can be unclear.

Disproportionately Negative

Having an excessive or unequal amount of negativity or adverse effects compared to positives.

Feedback

Information given to an individual or group regarding their performance or behavior, intended to guide future actions or decisions.

Specific Instruments

Tools or devices designed for a particular purpose or task, often referred to in the context of musical instruments or scientific measurements.