12. Acetaldehyde is shown below. Answer the following questions about this molec

Question

12. Acetaldehyde is shown below. Answer the following questions about this molecule. (1 point each). a) What is the shape of the methyl carbon9 b) What is the shape of the carbonyl carbon? e) What is the CCO bond angle? d) In the methyl group, what is the HUH bond angle? 13. For the indicated molecule, answer the following questions. The numbers-1,2,3,4,5- serve only to identify each carbon. (1 point each). a) How many pi bonds are present? b) How many p orbitaIs arc present? c) how sigma bonds are present? d) What is the angle formed by C2C3C4? e) Is there free rotation around the C4C5 bond? f) Is there free rotation around the C2C3 bond

Explanation / Answer

Answer:

12)

a) Tetrahedran

b) trigonal planar

c) 120°

d) 109.5°

13)

a) 3

b) 6 (if only pi bonded atoms are considerd) or 21(if all the C and O are considered)

c) 12

d) 180°

e) no

f) no

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