Problem: Resonance. Describing a molecule as a blend of different resonance structures is similar to describing a paint color as a blend of primary colors. (a) Green paint is a blend of blue and yellow. We cannot describe green as a single primary color. (b) The ozone molecule is a blend of two resonance structures. We cannot describe the ozone molecule in terms of a single Lewis structure.Is the electron density consistent with equal weights for the two resonance structures for O3?

FREE Expert Solution

We are asked to determine if the electron density is consistent with equal weights for two O3 resonance structures.

In a resonance structure, electrons delocalize between bonds and lone pairs.

88% (64 ratings)
View Complete Written Solution
Problem Details

a) A diagram shows that the primary colors blue and yellow combine to form green, a color in which neither of the two primary colors it is composed of can be distinguished. b) A diagram shows resonance structures for ozone, the structure of which is an O (one pair of dots) single bonded to an O with (three pairs of dots) and double bonded to another O (two pairs of dots).  In the resonance structures, the orientation (left or right, angled down) of the double bond is different.  An electron density diagram shows three fused spheres.  The center sphere has a low (positive) electron density, while the two outer spheres have a high (negative) electron density.  Notice that the electrons density is distributed symmetrically across the molecule.
Resonance. Describing a molecule as a blend of different resonance structures is similar to describing a paint color as a blend of primary colors. (a) Green paint is a blend of blue and yellow. We cannot describe green as a single primary color. (b) The ozone molecule is a blend of two resonance structures. We cannot describe the ozone molecule in terms of a single Lewis structure.

Is the electron density consistent with equal weights for the two resonance structures for O3?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Resonance Structures concept. You can view video lessons to learn Resonance Structures. Or if you need more Resonance Structures practice, you can also practice Resonance Structures practice problems.