a ate buffer hols HCIOg hlorous acid 11 Example 16.11 -Using Oxidation Reactions Draw a structural formula for the product formed by treating each compound with NaClO₂ and NaH₂PO4) along with 2-methyl-2-butane a. Pentanal b. Cyclopentanecarbaldehyde Solution b The aldehyde group in each compound is oxidized to a carboxyl group (a) OH Pentanoic acid C2018 Cengage Learning. All Rights Reserved. (b) H OH Cyclopentane carboxylic acid

Solve the parts of 11.7

3. Provide at least one significant alternative resonance form for each molecule below. Generate a total of six correct structures to receive credit for this question. Provide curved arrows on the given structure to show how it relates to the first structure you draw in each case. An example is shown below in blue. A. R2N° C. R2N. E. B. D.

9. The two molecules shown below are structurally very similar. Draw all resonance structure for each species with curved arrows and circle which is molecule (A or B) is more stable because it has more resonance structures. Only use patterns 2 and 3. A B

The photo dimerization of benzophenone to benzopinacol is initiated by what type of electronic transition that then rapidly decomposes to a diradical since putting in electrons in anti bonds breaks bonds! The diradical then starts abstracting hydrogens from solution as pictured in the text? σ = electrons in sigma bonds n = electrons in non-bonding orbitals π electrons in pi bonds. anti bonds Hint: This process is very important because although the molecule responsible for human vision (retinal) is not a very long conjugated pi system, this transition allows retinal to absorb visible light. a. n to σ* b. σ to σ* C. π το π d. n to П e. σ to П* f. π to σ'

Consider the bonds labelled A and B below. Which one has a higher bond strength and why? Comment on the answers of at least two of your course mates regarding whether you agree with their answers or not. Provide your reasoning in each case. Br A

That answer is incorrect. Is there another possible solution? Preferably in a cyclopentane shape

.) Draw other reasonable resonance forms for the following structures. Circle the best resonance form for each structure. 4. a. b. NH₂

II. 2

Tutored Practice Problem 6.3.3 COUNTS TOWARDS GRADE Use formal charge and electronegativity to identify best resonance structure. Close Proble Three inequivalent resonance structures for carbonyl sulfide, SCO, are shown below, Assign formal charges to all atoms in the resonance structures and identify the more likely resonance structure. Note: If a row is not needed, leave it blank. 5-c = ö :S=C - ö: :S-C = 0: A B The more likely resonance structure for SCO is [ v Check & Submit Answer Show Approach