2.5 Soaps & Emulsions Flashcards by Duncan McGhie

Q

Soaps

Equation for forming a soap?

A

Fat/oil —> Soap + Glycerol
NaOH
Alkaline Hydrolysis

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Q

Soaps

Soaps’ Structure

A

Long covalent Hydrocarbon chains
Ionic charged head

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Q

Soaps

Define “Hydrophillic”

A

Water loving
Likely to be ionic or polar with Hydrogen Bonding

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Q

Soaps

Define: “Hydrophobic”

A

Water hating
Oil-soluble tail of soap molecule

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Q

Soaps

Why are detergents used in hard water?

A

Soaps form scum, detergents don’t

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Q

Soaps

How do soaps/detergents clean stuff?

A

Tail sticks into grease
Head sticks into water
Scrubbing pulls grease apart
Don’t reform because heads repell each other

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Q

A

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