Video: Dab tsi yog qhov txawv ntawm cov organic thiab aqueous txheej?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob tug txheej feem ntau hu ua tus dej theem thiab organic theem. Rau cov kuab tshuaj sib zog dua dej (piv txwv li, ntom <1), lub organic theem yuav so rau saum hauv cais funnel, whereas cov kuab tshuaj denser tshaj dej (density> 1) yuav tog rau hauv qab (Daim duab 1).
Ntxiv rau qhov no, koj tuaj yeem qhia qhov txawv ntawm cov txheej txheem dej thiab cov organic li cas?
Piav: Saib ntawm tus rooj rau tus yav dhau los swb. Hauv tus sab laug sib cais funnel, lub aqueous txheej yog nyob rau tus qab, meaning cov organic txheej yuav tsum tsawg dua dej. Hauv tus txoj cai sib cais funnel, lub aqueous txheej yog nyob rau tus saum, meaning cov organic txheej yuav tsum yog tuab dua dej.
Tsis tas li ntawd, txheej txheej organic hauv chemistry yog dab tsi? Yog muaj organic txheej , uas yog insoluble hauv dej thiab pib muaj tag nrho koj cov tebchaw uas koj yuav nws thiaj li sib cais. Cov organic txheej kuj muaj cov kuab tshuaj (CH2Cl2 los yog ether) uas yog insoluble hauv dej. Yog li cov organic txheej = Cov sib xyaws peb tab tom sim cais + cov kuab tshuaj insoluble.
Ntawm no, dab tsi yog cov txheej txheem aqueous hauv kev rho tawm?
Tom qab rho tawm Nrog cov kuab tshuaj ntawm ether thiab dej, 2 polar compounds yuav pom nyob rau hauv aqueous txheej (ib tug polar solvent dissolves polar solute) thiab cov nonpolar compound yuav pom nyob rau hauv nonpolar theem (ether). Nco tseg: theem muaj H2O npe dej theem.
Cov cuab yeej ntawm lub cev dab tsi yuav pab koj txiav txim siab seb txheej twg yuav yog txheej txheej organic?
Organic hauv paus muaj muab rho tawm nrog 10% HCl tov. Ntxiv 2-3 tee ntawm sab saum toj txheej mus rau ib lub raj me me ib nrab puv dej tuaj yeem pab koj txiav txim siab yog lub saum txheej yog cov dej txheej . Yog hais tias tee yaj nyob rau hauv dej, lub txheej yog cov dej txheej . Yog tsis yog, ces nws yog organic txheej.
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