Discussion Overview
The discussion revolves around the order of acidity for the oxoacids of phosphorus: H3PO4, H3PO3, and H3PO2. Participants explore theoretical reasoning and rules related to acidity, as well as the implications of structural features on acidity.
Discussion Character
- Homework-related, Conceptual clarification, Debate/contested
Main Points Raised
- One participant claims that H3PO4 is the most acidic due to its higher basicity and the greater number of replaceable H+ ions.
- Another participant mentions a rule regarding acid strength and the amount of oxygen in the molecule.
- A different participant questions the applicability of the oxygen rule, arguing that the presence of only one doubly bonded oxygen to phosphorus limits the ability to compare acidity based on that rule.
- One participant acknowledges a mistake and suggests checking Ka values for a more accurate assessment of acidity.
- A later reply indicates that the found Ka values suggest an opposite order of acidity compared to the original post, highlighting a need for theoretical reasoning in the absence of provided values for an exam.
Areas of Agreement / Disagreement
Participants express differing views on the order of acidity and the rules governing it, indicating that multiple competing perspectives remain unresolved.
Contextual Notes
Participants note the absence of Ka values in the exam context, which may limit the ability to reach a consensus on the order of acidity based on empirical data.
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