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What is soap? | StemPy Lab
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What is soap?
Chemistry
Easy
High School (9–10)
General
Carbon and Its Compounds › Reactions and Uses of Carbon Compounds
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StemPy Lab
What is soap?
A sodium or potassium salt of a long-chain carboxylic acid
A hydrocarbon
An ester of ethanol
A solution of ethanoic acid
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← Why is pure ethanoic acid called glacial acetic acid?
A student says: Soap works well in hard water, because it makes plenty of scum. What is the mistake? →
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Carbon and Its Compounds › Reactions and Uses of Carbon Compounds
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Problems on this topic
You wash clothes in hard water. With soap, a grey scum forms and there is little lather.
Easy
Tristearin, a fat of molar mass 890 g/mol, reacts with sodium hydroxide: fat + 3 NaOH → 3 soap +…
Hard
Ethanol reacts with sodium: 2 Na + 2 C₂H₅OH → 2 C₂H₅ONa + H₂.
Medium
A bottle of vinegar says: 6 g of ethanoic acid in every 100 mL.
Medium
All problems on this topic →