Bonjour jai des petits exo a faire en sciences phy mais je ne comprend pas trop comment il faut faire :S pourriez vous maider ?! :S 1) Quelle est le nombres d'atomes contenu dans 5.10-3 mol d'atomes ? 2) Quelle est la quantité de matiere ( exprimée en mol ) de 10¨24 atomes ?

By: USER3151
28 Agustus 2025 physique-chimie 5 minutes
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Grade: Education Subject: physique-chimie

Bonjour jai des petits exo a faire en sciences phy mais je ne comprend pas trop comment il faut faire :S pourriez vous maider ?! :S 1) Quelle est le nombres d'atomes contenu dans 5.10-3 mol d'atomes ? 2) Quelle est la quantité de matiere ( exprimée en mol ) de 10¨24 atomes ?

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1) (6,02.10^23)*(5.10^-3) = 3,01.10^21

2)10^24/(6,02.10^23) = 1,66 mol

Answered on 28 Agustus 2025

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