Dab tsi yog qhov sib xyaw ntawm ntsev thiab dej hu ua?
Dab tsi yog qhov sib xyaw ntawm ntsev thiab dej hu ua?

Video: Dab tsi yog qhov sib xyaw ntawm ntsev thiab dej hu ua?

Video: Dab tsi yog qhov sib xyaw ntawm ntsev thiab dej hu ua?
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Anonim

Cov sib tov yog dej thiab ntsev yog hu ua brine tov.

Ua raws li qhov xav tau, qhov sib xyaw ntawm ntsev thiab dej yog dab tsi?

Ntsev thiab dej yog ob qho kev daws teeb meem thiab a sib tov . Ntsev , lub solute, tuaj yeem yaj hauv dej , cov kuab tshuaj, thiab cov kuab tshuaj yog homogeneously faib rau hauv cov kuab tshuaj. Yog li ntawd, nws yog ib qho kev daws teeb meem. Nws kuj yog ib sib tov vim hais tias cov khoom yuav raug cais los ntawm mechanical txhais tau tias, distillation.

Kuj Paub, ntsev thiab dej yog dab tsi? Saline dej (tseem hu ua dej ntsev , ntsev - dej los yog dej ntsev) yog dej nrog ntsev hauv nws. Nws feem ntau txhais tau tias dej los ntawm hiav txwv (sea dej ) thiab dej hiav txwv. Yuav luag tag nrho cov dej ntawm lub ntiaj teb yog saline.

Thiab cov lus nug yog, yog ntsev thiab dej heterogeneous?

Dej ntsev yog tsim los ntawm kev sib tov ntsev (NaCl) in dej . Nws yog homogeneous sib tov thiab a heterogeneous ib. Qhov sib txawv ntawm ob yog tias qhov concentration yog tib yam nyob rau txhua qhov chaw thaum muaj kev sib xyaw homogeneous, whereas, nyob rau hauv rooj plaub heterogeneous sib tov, qhov concentration txawv ntawm qhov chaw mus rau qhov chaw nyob rau hauv ib tug sib tov.

Yam khoom twg yog dej ntsev?

Tag nrho cov qauv ntawm sodium chloride yog chemically tib yam. Dej kuj yog ib yam khoom ntshiab. Ntsev yooj yim yaj hauv dej, tab sis cov dej ntsev tsis tuaj yeem muab cais ua ib yam khoom vim nws muaj pes tsawg leeg tuaj yeem sib txawv. Koj tuaj yeem yaj me me ntsev los yog ntau npaum li cas rau hauv ib qho dej.

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