Unformatted text preview: 9/5/2011 Which of the following, 1 and 2, are constitutional
isomers of acetic acid? Does the reaction of anion 3 with H⊕ give a product
Does
different from acetic acid?
(A) yes A neither 1 or 2
acetic acid
C2H4O2 1
C2H4O2 B1
C2
D 1 and 2 (B) No
acetic acid Constitutional isomers have the same
formula but different bond connectivities? glucose sucrose fructose 2 2
C2H4O2 Which compound, (A) acetic acid or (B) compound 2, is
more acidic? 3 What happens when acetic acid is placed in water? acetic acid 2 Does the reaction acetate ion with H⊕ give a product
(constitutional isomer) different from acetic acid?
acetate
(A) yes What
What is the major species present if acetic acid is
added to distilled water to make a 0.10 M solution? (B) No
acetic acid A.
A. Ka = 1.8 x 10-5 B. 2 1 9/5/2011 What is the ratio of acid to conjugate base when the
pH = pKa? What is the pKa of acetic acid? pKa = 4.75
Ka = 10-4.75 A.
A. -4.75 Ka = 1.8 x 10-5 B. 4.75
C. 5.25 pKa = 4.75 A. Ka = = 10-4.75 B. D. -5.25 =?
1 What is the major species present in a solution of acetic
note: The pH of blood is about 7.
acid buffered at pH = 7? Is fluoroacetic acid a stronger acid than acetic acid? pKa = 4.75 A. Ka = pKa = 4.75 A. yes = 10-4.75 B. no B.
pKa = 2.59 What is the major species present in a solution of acetic
note: The pH of blood is about 7.
acid buffered at pH = 7. Why is fluoroacetic acid stronger than acetic acid? pKa = 4.75 A. Ka = pKa = 4.75 = 10-4.75 B. energy
energy
= 10-4.75
10-7 = 102.25 pKa = 2.59 2 9/5/2011 Why is acetic acid stronger than ethanol? pKa = 4.75 pKa = 16 Why is acetic acid stronger than ethanol? pKa = 4.75
pK A.
A. inductive effects C. neither of these B. resonance effects D. both of these pKa = 16 Why is acetic acid stronger than ethanol?
A. inductive effects δ⊖
δ⊕ pKa = 4.75 C. neither of these
D. both of these B. resonance effects pKa = 16 3 ...
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- Spring '08
- Fowler/Sampson
- Organic chemistry, Isomers, Reaction
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