Explore BrainMass

Ranking acidity and hydrogen atoms

The attachment contains all of the questions regarding ranking acidity and different forms of hydrogen atoms.


Solution Preview

Please check the file for the full solution to the questions.

Homework: Organic quemistry
1- What is the pKa of hydrogen HA? About 45 for sp2 carbon.

2- What is the pKa of hydrogen HB? About 55 for sp3 carbon
3- What is the pKa of hydrogen HC? About 18 for alcohols
4- What is the pKa of hydrogen HD? About 15 for amide

The pKa values given are rough estimates. If you have a number of choices to choose from, then the values may be different. So let me know if they have given choices.

5- The epoxyserinones represent some of the first compounds discovered from fungi cultured from deep-ocean sediment collections. What is the hybridization of the atom labeled A?

With one pi bond, it is sp2.

6- What is the formal charge of the atom labeled B?

Formal charge = number of valence electrons in neutral atom - valence electrons of atom in the compound = 6 - 7 = -1

7- What is the ...

Solution Summary

The solution discusses ranking acidity and hydrogen atoms.