QQuestionChemistry
QuestionChemistry
Determine the electron-domain geometry and molecular geometry for each of the following:
a. SBr₂
b. PI₄⁺
c. IBr₂⁻
The following three compounds all have the same general formula, XF₄. Compare the electron-domain geometries of these three compounds and explain what characteristic(s) of the central atom causes differences in geometry.
a. SiF₄
b. SeF₄
c. XeF₄
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Answer
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Step 1I'll solve this problem step by step, following the specified LaTeX formatting guidelines:
Part 1: Electron-Domain and Molecular Geometries
Step 2: SBr₂ Analysis
- Valence electrons: $$6 + (2 \times 7) = 20$$ electrons
- Central atom: S - Electron domain count: 3 domains (2 S-Br bonds, 1 lone pair) - Electron-domain geometry: Trigonal planar - Molecular geometry: Bent - Lone pair causes deviation from linear geometry
Final Answer
- SBr₂: Trigonal planar (electron-domain), Bent (molecular) - PI₄⁺: Tetrahedral (both electron-domain and molecular) - IBr₂⁻: Trigonal planar (electron-domain), Linear (molecular) - XF₄ Compounds: Varying geometries based on central atom's electron configuration
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