Qhov unit ntawm molar mass yog dab tsi?
Qhov unit ntawm molar mass yog dab tsi?

Video: Qhov unit ntawm molar mass yog dab tsi?

Video: Qhov unit ntawm molar mass yog dab tsi?
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Lub tswv yim uas tso cai rau peb txuas ob qhov ntsuas no yog molar mass. Molar mass txhais tau tias yog qhov loj hauv grams ntawm ib mole ntawm ib yam khoom. Cov units ntawm molar mass yog grams per mole, abbreviated li g /mol.

Kuj paub, molar mass ntsuas nyob rau hauv dab tsi?

Molar loj yog cov pawg ntawm cov khoom muab faib los ntawm tus nqi ntawm cov khoom ntawd, ntsuas hauv g/mol. Piv txwv li, atomic pawg titanium yog 47.88 amu lossis 47.88 g / mol. Nyob rau hauv 47.88 grams titanium, muaj ib tug mole, los yog 6.022 x 1023 titanium atoms.

Qhov thib ob, dab tsi yog chav tsev rau molecules? SI Base chav tsev rau tus nqi ntawm cov khoom yog mole. 1 mole yuav muab 6.0221415E+23 molecule.

Ib yam li ntawd ib tug yuav nug, seb qhov molar loj ntawm ib lub molecule txiav txim siab nws cov units yog dab tsi?

Cov molar loj yog txhais raws li tus pawg nyob rau hauv grams ntawm 1 mol ntawm cov khoom. Ib mole ntawm isotopically ntshiab carbon-12 muaj ib tug pawg ua 12g. Ntawd yog, lub molar loj ntawm ib yam khoom yog qhov pawg (hauv grams ib mole) ntawm 6.022 × 10 23 atoms, molecules , los yog formula units ntawm cov khoom ntawd.

mol% txhais li cas?

Lub mole (symbol: mol ) yog chav ntsuas ntsuas tus nqi ntawm cov khoom hauv International System of Units (SI). Nws yog txhais raws nraim 6.02214076 × 1023 constitutive particles, uas tej zaum yuav yog atoms, molecules, ions, los yog electrons.

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