pKa Values and Conjugate Bases

Flashcards covering a comprehensive list of common organic and inorganic compounds, their pKa values, and their respective conjugate bases.

What is the pKa of Hydroiodic acid (HI)?

-10

What is the conjugate base of Hydroiodic acid (HI)?

I-

What is the pKa of Hydrobromic acid (HBr)?

-9

What is the conjugate base of Hydrobromic acid (HBr)?

Br-

What is the pKa of Hydrochloric acid (HCl)?

-6

What is the conjugate base of Hydrochloric acid (HCl)?

Cl-

What is the pKa of Sulfuric acid (H2SO4)?

-3

What is the conjugate base of Sulfuric acid (H2SO4)?

HSO4-

What is the pKa of Hydronium ion (H3O+)?

-1.7

What is the conjugate base of Hydronium ion (H3O+)?

H2O

What is the pKa of Sulfonic acids (tosic acid) (R-SO3H)?

-1

What is the conjugate base of Sulfonic acids (tosic acid) (R-SO3H)?

R-SO3-

What is the pKa of Hydrofluoric acid (HF)?

3.2

What is the conjugate base of Hydrofluoric acid (HF)?

F-

What is the pKa of Carboxylic acids (R-COOH)?

4

What is the conjugate base of Carboxylic acids (R-COOH)?

R-COO-

What is the pKa of Protonated amines (R-NH3+)?

9-11

What is the conjugate base of Protonated amines (R-NH3+)?

R-NH2

What is the pKa of Thiols (R-SH)?

13

What is the conjugate base of Thiols (R-SH)?

R-S-

What is the pKa of Malonates (CH2(CO2CH3)2)?

13

What is the conjugate base of Malonates (CH2(CO2CH3)2)?

CH-(CO2CH3)2

What is the pKa of Water (H2O)?

14

What is the conjugate base of Water (H2O)?

OH-

What is the pKa of Alcohol (R-OH)?

17

What is the conjugate base of Alcohol (R-OH)?

R-O-

What is the pKa of Ketone/aldehyde (R-CH2-C=O)?

20-24

What is the conjugate base of Ketone/aldehyde (R-CH2-C=O)?

R-CH--C=O

What is the pKa of Nitrile (R-CH2-CN)?

25

What is the conjugate base of Nitrile (R-CH2-CN)?

R-CH--CN

What is the pKa of Ester (R-CH2-COOR)?

25

What is the conjugate base of Ester (R-CH2-COOR)?

R-CH--COOR

What is the pKa of Alkyne (RC≡CH)?

25

What is the conjugate base of Alkyne (RC≡CH)?

RC≡C-

What is the pKa of Sulfoxide (R-CH2-S(=O)-CH3)?

31

What is the conjugate base of Sulfoxide (R-CH2-S(=O)-CH3)?

R-CH--S(=O)-CH3

What is the pKa of Amine (R-NH2)?

~35

What is the conjugate base of Amine (R-NH2)?

R-NH-

What is the pKa of Hydrogen (H2)?

36

What is the conjugate base of Hydrogen (H2)?

H-

What is the pKa of Alkene (R-CH=CH2)?

~43

What is the conjugate base of Alkene (R-CH=CH2)?

R-CH--CH2

What is the pKa of Alkane (R-CH3)?

~50

What is the conjugate base of Alkane (R-CH3)?

R-CH2-