Aliphatic acids

Formic acid

46.026:1.6 = 28.77

Acetic acid

60.052:2.7 = 29.00

Propionic acid

74.079:2.6 = 28.49

Butyric acid

88.106:3.1 = 28.42

Valerianic acid

102.132:3.6 = 28.37

Average

28.68