Predicting the electron domain and molecular geometries

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The information provided in the statement already gives the answer for the predicted electron domain and molecular geometries, specifically that the electron domain is tetrahedral and the molecular geometry is bent/ v-shaped. This can be determined by using VSEPR, which is a model that predicts the geometry of molecules based on the repulsion of electron domains around the central atom.
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Joe20
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Homework Statement
Predict the electron domain and molecular geometries around the oxygen atom of molecule A using VSEPR.
Relevant Equations
The answer for electron domain is tetrahedral and molecular geometry is bent/ v-shaped.
1.png


I would like to know how can we determine or tell from the diagram that the electron domain is tetrahedral and molecular geometry is bent/ v-shaped?

thanks
 
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Joe20 said:
Homework Statement: Predict the electron domain and molecular geometries around the oxygen atom of molecule A using VSEPR.
Relevant Equations: The answer for electron domain is tetrahedral and molecular geometry is bent/ v-shaped.

I would like to know how can we determine or tell from the diagram that the electron domain is tetrahedral and molecular geometry is bent/ v-shaped?
Since this is a schoolwork question, please tell us what you think the answers are and why. Thanks.
 
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  • #3
Joe20 said:
Homework Statement: Predict the electron domain and molecular geometries around the oxygen atom of molecule A using VSEPR.
Relevant Equations: The answer for electron domain is tetrahedral and molecular geometry is bent/ v-shaped.

View attachment 326883

I would like to know how can we determine or tell from the diagram that the electron domain is tetrahedral and molecular geometry is bent/ v-shaped?

thanks
Trick question.
 

1. What is the difference between electron domain and molecular geometry?

The electron domain geometry refers to the arrangement of all electron domains around a central atom, including both bonding and non-bonding electron pairs. Molecular geometry, on the other hand, refers to the arrangement of only the bonded atoms in a molecule.

2. How do you predict the electron domain geometry of a molecule?

To predict the electron domain geometry, you first need to draw the Lewis structure of the molecule and determine the number of electron domains around the central atom. Then, you can use the VSEPR (Valence Shell Electron Pair Repulsion) theory to determine the most stable arrangement of these electron domains.

3. What factors influence the molecular geometry of a molecule?

The molecular geometry of a molecule is influenced by the number of electron domains, the types of electron domains (bonding or non-bonding), and the repulsion between these domains. Other factors such as lone pairs, multiple bonds, and electronegativity also play a role in determining the molecular geometry.

4. Can the molecular geometry of a molecule be predicted without knowing the electron domain geometry?

No, the electron domain geometry is a crucial factor in determining the molecular geometry. Without knowing the electron domain geometry, it is not possible to accurately predict the molecular geometry.

5. How does the molecular geometry affect the physical and chemical properties of a molecule?

The molecular geometry can affect the polarity, bond angles, and overall shape of a molecule, which in turn can influence its physical and chemical properties. For example, a polar molecule with a bent molecular geometry will have different properties than a nonpolar molecule with a linear molecular geometry.

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