Student has accidentally mixed up a bottle of ethanoic acid, hexane and hex-2-ene, how does pupil tells difference between the three bottles?
回答 (3)
2015-01-06 7:41 pm
pH paper or smelling will identify the ethanoic acid. Then, you can distinguish the hexane from hex-2-ene by shaking the liquid with a small amount of bromine water. The alkene will decolorize the bromine water, but the alkane will not.
2015-01-07 4:26 am
Ethanoic acid: (acetic acid:) A drop dissolves in water. Does not decolorize bromine.
Hexane: A drop does not dissolve in water. Does not decolorize bromine.
Hexene: A drop does not dissolve in water. Decolorizes bromine (usually done in CCl4)
Hexane: A drop does not dissolve in water. Does not decolorize bromine.
Hexene: A drop does not dissolve in water. Decolorizes bromine (usually done in CCl4)
2015-01-06 7:30 pm
Test each one.
收錄日期: 2021-04-21 01:14:18
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