2 09-02 - 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

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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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This note was uploaded on 10/05/2011 for the course CHE 321 taught by Professor Fowler/sampson during the Spring '08 term at SUNY Stony Brook.

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