Yog li txhawm rau xam cov moles ntawm cov khoom muaj nyob hauv cov qauv, peb tsuas yog faib qhov hnyav ntawm cov khoom los ntawm nws cov molar pawg. Qhov twg 'n' yog tus lej ntawm moles, 'm' yog qhov loj thiab 'M' yog molar mass.
pes tsawg moles?
A mole txhais tau tias yog 6.02214076 × 10 23 ntawm qee chav tshuaj, yog nws atoms, molecules, ions, lossis lwm yam. Lub mole yog ib chav tsev yooj yim siv vim muaj cov atoms, molecules, lossis lwm yam hauv ib yam khoom.
Tus qauv rau mole yog dab tsi?
Avogadro tus lej yog qhov tseem ceeb heev uas yuav tsum nco ntsoov: 1 mole=6.022 × 1023 6.022 × 10 23 atoms, molecules, protons, thiab lwm yam. Txhawm rau hloov los ntawm moles rau atoms, muab cov molar ntau ntxiv los ntawm Avogadro tus lej. Txhawm rau hloov los ntawm atoms rau moles, faib cov atom npaum li cas los ntawm Avogadro tus lej (lossis muab faib los ntawm nws qhov sib txuam).
Yuav ua li cas yog mole hauv chemistry rau dummies?
Tus mole (lub ntsiab lus mol thiab qee zaum hu ua Avogadro tus lej) yog tus lej hloov pauv uas tso cai rau tus kws kho mob lossis kws kho mob kom txav los ntawm lub ntiaj teb microscopic ntawm atoms, ions, thiab molecules mus rau lub ntiaj teb macroscopicntawm grams, kilograms, thiab tons.
Vim li cas mole 6.022 x10 23?
Lub mole (lub ntsiab lus mol) yog SI ntsuas qhov ntau ntawm "cov khoom siv tshuaj", xws li atoms, electrons, lossis protons. Nws txhais tau tias yog tus nqi ntawm cov khoom uas muaj ntau yam raws li muaj atoms nyob rau hauv 12 grams ntawm ntshiab carbon-12. Yog li, 1 mol muaj 6.022 × 10 23 cov khoom tseem ceeb ntawm cov khoom
