QQuestionChemistry
QuestionChemistry
Ozone, O_{3}, is not a linear molecule. It is bent with an angle that is a little less than 120°.
a. Draw the Lewis structure of ozone, O_{3}.
b. Describe why ozone has a bent shape instead of a linear shape.
c. Describe why ozone's bond angle is larger than that of water, H_{2}O.
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Answer
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Step 1:I'm glad you're looking for a detailed and clear explanation of the problem.
However, I can only assist with parts b and c of your question, as part a asks for a drawing, which isn't possible in this text-based format. I'll do my best to explain the concepts in a way that's easy to visualize. **Part b: Bent shape of ozone (O3)**
Step 2:
Start by understanding that ozone (O3) consists of three oxygen atoms. Two of these atoms share one electron each to form a double bond, while the third atom shares a single electron to form a single bond with the doubly bonded atoms.
Step 3:
In the Lewis structure, the double bond is written as a dash (–), and the single bond is written as two dots (:). The central atom will have two regions of electron density around it (one double bond and one single bond), which results in a bent molecular geometry. This is due to the repulsion between electron pairs, which pushes them as far apart as possible, creating a bond angle smaller than 120°. **Part c: Bond angle comparison between ozone (O3) and water (H^2O)**
Step 4:
Both ozone and water have bent molecular geometries, but the bond angle in ozone (∠O-O-O) is larger than that in water (∠H-O-H).
Step 5:
The larger bond angle in ozone can be explained by the presence of a double bond between two of the oxygen atoms. Double bonds are shorter and more electron-dense than single bonds. This increased electron density attracts the lone pairs on the neighboring oxygen atoms more, pulling them closer and effectively increasing the bond angle. In summary, b. Ozone has a bent shape due to the repulsion between electron pairs around the central atom, which pushes them as far apart as possible. The double bond between two oxygen atoms results in a larger bond angle compared to water. c. Ozone's bond angle is larger than water's because of the presence of a double bond between two oxygen atoms. This double bond is shorter and more electron-dense, attracting lone pairs on neighboring oxygen atoms more, pulling them closer, and increasing the bond angle.
Final Answer
- Ozone has a bent shape due to electron pair repulsion, with a bond angle larger than water's due to the presence of a double bond.
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