Muaj pes tsawg atoms nyob rau hauv ib mole ntawm argon?
Muaj pes tsawg atoms nyob rau hauv ib mole ntawm argon?

Video: Muaj pes tsawg atoms nyob rau hauv ib mole ntawm argon?

Video: Muaj pes tsawg atoms nyob rau hauv ib mole ntawm argon?
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Anonim

7.66 X 10 ^ 5 millimols argon (1 moleargon / 1000mmol) ( 6.022 luas = 10 x 23/1 mol Ar) = 4.61 X 10^25 atomsof

Ua kom pom qhov no, pes tsawg moles ntawm argon nyob hauv atoms?

SI base unit rau tus nqi ntawm cov khoom isthe mole . 1 mole yog 1 Argon ntawm moles 39,948g,ua. Nco ntsoov tias qhov yuam kev rounding muaj tshwm sim, soalwayscheck cov txiaj ntsig.

Ib yam li ntawd, pes tsawg atoms nyob hauv ib mole? Avogadro tus naj npawb yog ib qho tseem ceeb heev kev sib raug zoo nrog rau: 1 mole = 6.022×1023 6.022 × 1023 atoms , molecules, protons, thiab lwm yam. Los hloov los ntawm moles rau atoms , muab tus lej molar los ntawmAvogadro tus lej. Hloov los ntawm atoms rau moles , faib atom tus nqi los ntawm Avogadro tus naj npawb (los yog muab faib los ntawm nws cov neeg sib tw).

Ib yam li ntawd, nws tau nug, peb muaj pes tsawg atoms ntawm argon?

Lub npe Argon
Atomic Mass 39.948 atomic mass units
Tus naj npawb ntawm Protons 18
Tus naj npawb ntawm Neutrons 22
Tus naj npawb ntawm Electrons 18

Yuav ua li cas koj xam tus naj npawb ntawm atoms?

Rau xam tus naj npawb ntawm atoms Hauv qhov piv txwv, faib nws qhov hnyav hauv grams los ntawm amu atomic mass los ntawm qhov ua tau zoo, ces muab cov txiaj ntsig los ntawm Avogadro's tus lej 6.02x10^23.

Pom zoo: