for qualitative measurementsAcetic acid . 2 mLDecanoic (10% w/v in Chloroform) . 2 mL Propanoic acid . 2 mL Undecanoic (10% w/v in Chloroform) . 2 mL Butanoic acid . 2 mLDodecanoic (10% w/v in Chloroform) . 2 mL2-Methylpropanoic acid . 2 mL Tridecanoic (1