Yuav ua li cas koj nrhiav tau tus naj npawb ntawm molecules nyob rau hauv ib tug tshuaj formula?

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

Multiply Moles los ntawm Avogadro tas li

Multiply tus lej ntawm moles los ntawm Avogadro tas li, 6.022 x 10^23, los xam cov tus naj npawb ntawm molecules hauv koj tus qauv.

Ib yam li ntawd, nws raug nug, koj yuav suav pes tsawg tus molecules hauv Mass?

1 Teb. Faib cov pawg ntawm cov tshuaj molecular los ntawm nws cov molar pawg kom tau moles. Tom qab ntawd muab ntau zaus 6.022 × 1023 molecules 1 mol ib.

Ib yam li ntawd, koj ua li cas thiaj nrhiav tau tus lej ntawm cov molecules hauv cov pa roj? Txhawm rau nrhiav tus naj npawb ntawm cov molecules hauv cov qauv roj, muab lub siab, ntim, thiab kub ntawm cov qauv:

1. Xav seb pes tsawg moles ntawm CO₂ gas koj.
2. Siv Avogadro tus lej los hloov moles rau hauv molecules: 0.0211915 mol × 6.02 × 10²³ Luas/mol = 1.28 × 10²² molecules.

Kuj paub, ua li cas koj pom tus naj npawb ntawm cov molecules ntawm grams?

Ib pawg hauv grams tus lej sib npaug rau qhov hnyav molecular muaj ib mole ntawm molecules , uas paub tias yog 6.02 x 10^23 (Avogadro's tus lej ). Yog li koj muaj x grams ntawm ib yam khoom, thiab qhov hnyav molecular yog y, ces tus tus lej ntawm moles n = x/y tus naj npawb ntawm molecules = n multiplied by Avogadro's tus lej.

Muaj pes tsawg molecules nyob rau hauv 9 grams dej?

9 grams dej yog 1/2 mole uas yog… 3.012 x 10^ 23 molecules.