Discussion Overview
The discussion revolves around the net charge of adenosine diphosphate (ADP) and the formal charge of an oxygen atom within its structure. Participants explore theoretical aspects, calculations related to formal charge, and the implications of binding with other elements.
Discussion Character
- Exploratory
- Technical explanation
- Debate/contested
- Mathematical reasoning
Main Points Raised
- One participant suggests that the net charge of ADP is zero, reasoning that it is a molecule.
- Another participant proposes that the net charge of ADP is -3 and that ATP has a net charge of -4, expressing uncertainty about the formal charge.
- A participant asks for clarification on what a formal charge is.
- A definition of formal charge is provided, detailing the formula involving valence electrons, non-bonding electrons, and bonding electrons.
- One participant calculates that if oxygen has 6 valence electrons and a certain arrangement of bonding and non-bonding electrons, its formal charge could be 0 or -2, depending on the total count.
- Another participant expresses doubt about the -3 net charge for ADP, reiterating their expectation of a net charge of zero and calculating the formal charge of oxygen to be zero based on its electron configuration.
- A later reply mentions that ADP has a net charge of zero but could lose 3 hydrogen atoms when binding with barium, resulting in a net charge of -3, suggesting that the -3 charge might be a natural state.
Areas of Agreement / Disagreement
Participants express differing views on the net charge of ADP, with some asserting it is zero and others proposing it is -3. The formal charge of oxygen also appears to be a point of contention, with calculations leading to different interpretations.
Contextual Notes
There are unresolved assumptions regarding the Lewis structure of ADP and the specific conditions under which the net charge may change when interacting with other elements.