Additional%20problems%20before%20Quiz%203

Additional%20problems%20before%20Quiz%203 - stable and...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Additional problems before Quiz 3 Fall 2009 1. Both molecules have acidic protons. Which one has them potentially more acidic and why? H H H H 2. Explain the transformation (draw the mechanism): O NH 2 CH 3 O H OH N O CH 3 H 3. For each of the following compounds: a. determine the hybridization on the indicated atoms, b. show the kind of orbitals that overlap to form each bond c. show the number of unhybridized p orbitals on the indicated atoms H 3 C N H 3 C H H 3 C H 3 C CHO H 2 N CN 4. Indicate which structures are aromatic (A), antiaromatic (AA) or nonaromatic (NA). If aromatic or antiaromatic indicate number of electrons in closed loops : N S O N N N N N H N
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
5. Draw the protonated structures for both molecules. Indicate which protonated structure is more
Background image of page 2
Background image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: stable and explain why. O O 6. Explain (using B as comparison) why the pK a1 of A is so low and the pK a2 of A is so high. COOH COOH HOOC COOH pK a1 = 1.92 pK a2 = 6.23 pK a1 = 3.02 pK a2 = 4.39 A B 7. Indicate which structures are aromatic(A), antiaromatic(AA) or nonaromatic(NA). If aromatic or antiaromatic indicate number of electrons in closed loops: O O H N N N S 8. Explain why the acid on the left is stronger than the acid on the right: O O HOOC H H COOH 9. Explain the differences between pK a1 and pK a2 values for two dicarboxylic acids given below: COOH COOH COOH COOH pK a1 = 2.98 pK a2 = 5.28 pK a1 = 3.51 pK a2 = 4.82...
View Full Document

This note was uploaded on 10/11/2010 for the course CHM 2211 taught by Professor Castalleano during the Spring '06 term at University of Florida.

Page1 / 3

Additional%20problems%20before%20Quiz%203 - stable and...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online