Dab tsi yog chemistry mole quizlet?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Cov mole yog tus nqi ntawm cov khoom uas muaj ntau yam (molecules, ions los yog atoms) raws li muaj nyob rau hauv 12g ntawm carbon. Tus lej no tau pom tias yog 6.02 x 10^23. Molar Mass (M) Tus lej sib npaug rau qhov txheeb ze molecular loj ntawm txhua lub ntsiab hauv ib lub molecule. Siv g/ mol raws li lub unit.

Dhau li ntawm no, dab tsi yog mole hauv chemistry?

Cov mole yog tus nqi ntawm cov nqi hauv chemistry . A mole ntawm ib yam khoom yog txhais raws 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, mole cuam tshuam li cas rau atoms molecules thiab ions? A mole tsuas yog ib qhov ntau ntawm 6.022 × 1023 ntawm txhua yam. Peb tuaj yeem muaj ib mole ntawm atoms , molecules , ions los yog ntxhw. Ib mole ntawm atoms ntawm ib lub caij muaj ib qho loj sib npaug rau 'ntau tus lej' (tam sim no qee zaum hu ua 'nucleon tooj') ntawm lub caij ntawd, piv txwv li. 1 mole ntawm 126C muaj qhov hnyav ntawm 12 g.

Tsis tas li ntawd, qhov ntsuas ntawm mole yog dab tsi?

Mole yog SI unit ntsuas siv rau ntsuas tus naj npawb ntawm cov khoom, feem ntau atoms lossis molecules. Ib mole ntawm ib yam dab tsi yuav muab 6.02214078 × 10²³ ntawm tib yam (Avogadro tus lej). Atoms thiab molecule loj yog ntsuas hauv amu. Ib qho amu yog sib npaug rau ib gram ib mole.

Vim li cas chemists siv lub mole unit?

Cov mole yog tseem ceeb vim nws tso cai kws tshuaj ua haujlwm nrog lub ntiaj teb subatomic nrog macro ntiaj teb units thiab tus nqi. Atoms, molecules thiab formula units yog me me thiab nyuaj heev los ua haujlwm nrog feem ntau. Txhais cov mole nyob rau hauv txoj kev no tso cai rau koj hloov grams rau moles los yog moles rau particle.