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Chapter 2: 2.35 (page 83)

Label the Lewis acid and base. Use curved arrow notation to show the movement of electron pairs.

Short Answer

Expert verified
  • The Lewis acids are electron-deficient species (electrophiles) that have empty orbitals.
  • The Lewis bases have properties contrasting to Lewis acids.

Step by step solution

01

Lewis acid and Lewis base

  • The Lewis acids are electron-deficient species (electrophiles) that have empty orbitals.
  • The Lewis bases have properties contrasting to Lewis acids.
02

Formation of the product

The H3O+molecule becomes a Lewis base by releasing a proton.

The CH3CH2COCH2CH3is a Lewis acid due to the presence of the carbonyl group (CO).

In this molecule, oxygen attracts the proton from the hydronium ion and thus, enhances the Lewis acidity or electrophilicity of the carbonyl carbon.

Therefore, CH3CH2COCH2CH3 accepts electrons at the carbonyl carbon from the water molecule (Lewis base).

Formation of the products

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Most popular questions from this chapter

Answer the following questions about esmolol, a drug used to treat high blood pressure sold under the trade name Brevibloc.

a. Label the most acidic hydrogen atom

b. What products are formed when esmolol is treated with NaH?

c. What products are formed when esmolol is treated with HCl?

d. Label allsp2 hybridized C atoms. in esmolol.

e. Label the only trigonal pyramidal atom.

f. Label all C’s that bear aδ+ charge.

For each reaction, label the Lewis acid and base. Use curved arrow notation to show the movement of electron pairs.

a.

b.

The pKa values of the two ammonium cations drawn below are 8.33 and 11.1. Which pKacorresponds to which cation? Explain your choice.

Which hydrogen in pseudoephedrine, the nasal decongestant in the commercial medication Sudafed, is most acidic?

Draw the product formed when the Lewis acid (CH3CH2)3C+reacts with each Lewis base:

role="math" localid="1649304251552" (a)CH3OH;(b)(CH3)2O;(c)(CH3)2NH.
See all solutions

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