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23 Nov 2019

Determine the shape around each central atom and predict anydeviations from ideal bond angles in the following molecules.
(a) C3H4
C in CH3 bond shape? _______ angle? ______ degrees
C-C-C bond shape? _______ angle? ______ degrees

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Patrina Schowalter
Patrina SchowalterLv2
9 Feb 2019

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Related questions


Show transcribed image text
Give the bond angle and determine the shape around the central atomdesignated in this molecule.

O in CH3

Predict the molecular shape of  using VSEPR theory.

  1. Draw for yourself the best Lewis structure.
  2. Count the number of electron groups (bond pairs and lone pairs, with multiple  counting as one effective electron group) around the central atom, Answer

To establish the electron-group arrangement, Answer. From the electron-group arrangement, you can determine the hybridization of the central atom to be Answer

  1. The electron-group arrangement is not (necessarily) the same as the molecular shape, which is named on the basis of the arrangement of atoms. The molecular shape is Answer
  2. The ideal bond angles around the central atom are Answer. By analyzing repulsive forces between electron pairs (both lone pairs and bond pairs) and realizing that only bond angles subtended by atoms (not lone pairs) can actually be observed, you can predict if any deviations will occur; the experimental bond angles around the central atom will be Answer the ideal bond angles.
  3. Taking the vector sum of bond dipoles, you can evaluate the net dipole moment and predict that the molecule will be Answer

 

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