QQuestionChemistry
QuestionChemistry
"Determine the electron geometry, molecular geometry, and idealized bond angles for each of the following molecules:
a. CF^4
b. NF^3
c. OF^2
d. H^2S"
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Answer
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Step 1
For CF₄, the electron geometry is tetrahedral and the molecular geometry is also tetrahedral. The idealized bond angles are 109.5 degrees.
Step 2: Determine the number of electron groups around the central atom.
- In a CF₄ molecule, Carbon (C) is the central atom and Fluorine (F) atoms are surrounding it. - Each F atom brings 1 pair of electrons to form a sigma bond with C. - Hence, there are 4 electron groups around the C atom.
Final Answer
a. CF₄: Electron geometry: tetrahedral, Molecular geometry: tetrahedral, Idealized bond angles: 109.5 degrees b. NF₃: Electron geometry: tetrahedral, Molecular geometry: trigonal pyramidal, Idealized bond angles: approximately 107 degrees c. OF₂: Electron geometry: tetrahedral, Molecular geometry: bent or angular, Idealized bond angles: approximately 104.5 degrees d. H₂S: Electron geometry: tetrahedral, Molecular geometry: bent or angular, Idealized bond angles: approximately 92 degrees
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