pKa Table

Question 1

What is the pKa of alkanes? What factors contribute to this?

Answer 1

55; no contributing factors

Question 2

What is the pKa of alkenes? What factors contribute to this?

Answer 2

45; hybridization

Question 3

What is the pKa of allyl/benzyl? What factors contribute to this?

Answer 3

40; resonance

Question 4

What is the pKa of amines? What factors contribute to this?

Answer 4

35; electronegativity

Question 5

What is the pKa of diallyl/dibenzyl? What factors contribute to this?

Answer 5

35; resonance

Question 6

What is the pKa of alkynes? What factors contribute to this?

Answer 6

25; hybridization

Question 7

What is the pKa of carbonyls? What factors contribute to this?

Answer 7

20; resonance and electronegativity

Question 8

What is the pKa of alcohols? What factors contribute to this?

Answer 8

15; electronegativity

Question 9

What is the pKa of thiols? What factors contribute to this?

Answer 9

10; electronegativity and size

Question 10

What is the pKa of 1,3,-dicarbonyls? What factors contribute to this?

Answer 10

20; electronegativity and resonance

Question 11

What is the pKa of ammoniums? What factors contribute to this?

Answer 11

10; neutrality

Question 12

What is the pKa of nitro? What factors contribute to this?

Answer 12

10; electronegativity, resonance, and induction

Question 13

What is the pKa of peroxide? What factors contribute to this?

Answer 13

10; electronegativity and induction

Question 14

What is the pKa of carboxylic acids? What factors contribute to this?

Answer 14

10; electronegativity and resonance

Question 15

What is the pKa of strong acids? What factors contribute to this?

Answer 15

0>; electronegativity and resonance

Question 16

What is the pKa of inorganic acids (H-X)? What factors contribute to this?

Answer 16

-5; size and resonance

Question 17

What is the pKa of oxoniums? What factors contribute to this?

Answer 17

0; electronegativity and neutrality