Pka values

H on SP3 carbon = 50

H on SP2 carbon = 44

amines = 38

H - H = 35

H on SP carbon = 25

alcohols = 16

H2O = 15.7

alcohols with resonance = 10

protonated amines = 9

thiols = 7

carboxylic acids = 5

protonated alcohols = -1.7

H - X = -7

sulfonic acids = -9