Puas yog ether thiab ethanol tib yam?
Puas yog ether thiab ethanol tib yam?

Video: Puas yog ether thiab ethanol tib yam?

Video: Puas yog ether thiab ethanol tib yam?
Video: 2/23/22. Poj Nplog Yug Tau Me Nyuam Txawv Heev/Meskas Muab Russia Kaw Ib Puas Tsav Yam/Hmong News. 2024, Kaum ib hlis
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yog tias ethanol yog (organic compound) ib qho yooj yim aliphatic cawv ua tau los ntawm ethane los ntawm kev hloov ib hydrogen atom nrog ib pawg hydroxyl: ch3-ch2-oh thaum ether yog (organic compound | suav tau) ib qho chaw uas muaj cov pa oxygen atom sib txuas rau ob pawg hydrocarbon.

Tseem yuav paub yog, puas yog ethanol ib ether?

Cov tshuaj uas muaj peev xwm ntawm H+ ion, lossis proton, feem ntau tau piav qhia tias yog protic. Ethanol Piv txwv li, yog cov kuab tshuaj protic. OH pab pawg, ethers yog aprotic kuab tshuaj. Ethers tuaj yeem ua ke los ntawm kev faib tawm cov dej ntawm cov dej ntawm ob lub cawv nyob rau hauv lub xub ntiag ntawm kub thiab concentrated sulfuric acid.

Tsis tas li ntawd, cawv thiab ethers txawv ntawm alkanes li cas? Alkanes thiab cawv yog zoo ib yam li lawv tau muaj ntev los yog luv chains ntawm carbon atoms uas yog surrounded los ntawm hydrogen atoms. Qhov tshwj xeeb sib txawv nruab nrab ib alkane chain ib cawv chain yog ib cawv muaj dab tsi hu ua hydroxyl pawg sib koom ua ke rau ib qho ntawm cov carbons, hloov ib qho yooj yim hydrogen.

Kuj nug, koj tuaj yeem qhia qhov txawv ntawm cawv thiab ether li cas?

Lub xub ntiag ntawm OH pawg hauv cawv thiab tsis muaj nws nyob rau hauv ether . Thiab vim tias hydrogen bonds tsis tuaj yeem tsim nruab nrab cov molecules nyob rau hauv ether , lub boiling point ntawm no compound yog ntau tshaj 80 degree C qis tshaj qhov cawv.

Vim li cas viscosity ntawm ethanol siab dua ether?

Cov ethanol muaj ntau siab dua kub point. Teb: lub viscosity ntawm ethanol ntau dua uas ntawm ether vim hais tias muaj nyob rau hauv H bonding nyob rau hauv cawv ua rau siab dua zog ntawm kev sib raug zoo.

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