Question

Point out the hydrophilic and hydrophobic regions in the structures of sodium dodecyl sulfate, Nonoxynol®, and the alkylbenzenesulfonate detergent (Figure 25-6).

Short answer

Hydrophilic and hydrophobic regions in the structure of sodium dodecyl sulfate detergent

Hydrophilic and hydrophobic regions in the structure of Nonoxynol® detergent

Hydrophilic and hydrophobic regions in the structure ofalkylbenzenesulfonate detergent

Step-by-step solution

Sodium dodecyl sulfate (SDS)

SDS is an anionic detergent having formulae CH₃(CH₂)₁₁OSO₃Naconsisting of a hydrophobic 12-carbon chain and a polar sulfate head group.

Step 2:Nonoxynol®

Nonoxynol is a surfactant having formula C₃₃H₆₀O₁₀ consisting of hydrophobic nine carbon with a benzene ring and hydrophilic –OH head.

Alkylbenzenesulfonate

Alkylbenzenesulfonate is used as a surfactant, having chemical formulae C₆H₅CnH_2n+1, where n lies between 10 and 16. Having carbon chain containing benzene ring as a hydrophobic tail and polar sulfate head.