Video: Dab tsi tshwm sim thaum ntsev yaj hauv dej ntshiab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Solutes yaj hauv dej (solvent) hu ua aqueous solutions. Yog li thaum ib qho ionic ( ntsev ) yaj hauv dej , nws tau tawg mus rau hauv tus kheej cations thiab anions uas nyob ib puag ncig dej molecules. Piv txwv li, thaum NH4 TSIS MUAJ3 yog yaj hauv dej nws tawg mus rau hauv nyias ions.
Ib yam li ntawd, tib neeg nug, yuav ua li cas thaum ntsev yaj hauv dej?
Dej ua tau yaj ntsev vim qhov zoo ntawm dej molecules nyiam qhov tsis zoo chloride ions thiab qhov tsis zoo ntawm dej molecules attracts qhov zoo sodium ions. Tus nqi ntawm cov khoom uas muaj peev xwm yaj nyob rau hauv ib tug kua (ntawm ib tug tshwj xeeb kub) yog hu ua lub solubility ntawm cov khoom.
Kuj Paub, Nws Yuav Siv Lub Sijhawm Ntev npaum li cas kom yaj ntsev hauv dej? Boiling dej (70 degrees) - tag nrho yaj hauv 2 feeb. Dej khov dej (3 degrees) - lub ntsev crystals shrunk mus rau ib nrab ntawm qhov loj tab sis ua tsis yog yaj.
Thiab cov lus nug yog, ntsev ua li cas nrog dej?
Thaum twg ntsev yog tov nrog dej , cov ntsev dissolves vim covalent bonds ntawm dej muaj zog tshaj cov ionic bonds nyob rau hauv lub ntsev molecules. Dej molecules rub cov sodium thiab chloride ions sib nrug, rhuav tshem cov ionic daim ntawv cog lus uas tuav lawv ua ke.
Vim li cas qee cov ntsev tsis yaj hauv dej?
Cov ntsev yaj feem ntau vim lawv poob sib nrug, noj rooj ntsev (NaCl) piv txwv. Thaum nws pw ntawm koj lub rooj, nws tsim cov qauv zoo li no, tab sis thaum muab tso rau hauv dej lawv daim ntawv cog lus yuav poob thiab lawv yuav tig mus rau Na + thiab CL -.
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