Video: Puas yog atoms thiab moles yog tib yam?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Atoms yog qhov tsawg tshaj plaws tsis pom chav nyob ntawm ib lub caij. A mole yog chav tsev ntawm tus nqi hauv chemistry uas muaj raws li ntau particle raws li nyob ntawd yog atoms nyob rau hauv raws nraim 12 grams ntawm carbon-12. Tus choj ntawm atoms thiab moles yog Avogadro tus lej, 6.022 × 1023.
Ib yam li ntawd ib tug yuav nug, dab tsi yog moles sib npaug?
Cov mole , luv luv mol , yog ib chav SI uas ntsuas tus naj npawb ntawm cov khoom hauv ib yam khoom tshwj xeeb. Ib mole yog sib npaug 6.02214179 × 1023 atoms, los yog lwm yam elementary units xws li molecules.
Tsis tas li ntawd, lub ntsiab lus ntawm mole hauv chemistry yog dab tsi? Cov mole yog tus nqi ntawm cov nqi hauv chemistry . A mole ntawm ib yam khoom yog txhais xws li: Qhov loj ntawm cov khoom uas muaj tib tus naj npawb ntawm cov hauv paus ntsiab lus raws li muaj atoms nyob rau hauv raws nraim 12.000 g ntawm 12C. Cov chav hauv paus tej zaum yuav yog atoms, molecules, los yog formula units, nyob ntawm seb cov khoom muaj feem xyuam.
Tsis tas li ntawd, koj yuav hloov pauv ntawm atoms thiab moles li cas?
Rau hloov los ntawm moles rau atoms , muab tus lej molar los ntawm Avogadro tus lej. Rau hloov los ntawm atoms rau moles , faib atom tus nqi los ntawm Avogadro tus lej (lossis muab faib los ntawm nws qhov sib txawv).
Dab tsi yog txhais los ntawm ib tug mole?
Metric (SI) units ntawm tus nqi (tsis loj lossis hnyav) ntawm cov khoom. Ib mole yog txhais Raws li tus nqi ntawm cov khoom uas muaj ntau lub hauv paus chaw (atoms, molecules, ions, electrons, radicals, thiab lwm yam) raws li muaj atoms nyob rau hauv 12 grams ntawm carbon-12 (6.023 x 1023). Kuj hu ua gram-molecular hnyav.
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