J’aurais besoin d’aide svp énoncer ci dessous:

Un réparateur automobile désire préparer une solution
aqueuse de concentration en masse Cm= 150 g.L-1 d'acétone
pour dégraisser une pièce automobile.
Exprimer puis calculer le volume V de solution qu'il pourra
fabriquer en dissolvant dans l'eau un échantillon de masse
m= 200 g d'acétone.

By: USER4114
27 Agustus 2025 physique-chimie 5 minutes
4.5
389 views 389 comments 15 shares
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Question

Grade: Education Subject: physique-chimie
J’aurais besoin d’aide svp énoncer ci dessous:

Un réparateur automobile désire préparer une solution
aqueuse de concentration en masse Cm= 150 g.L-1 d'acétone
pour dégraisser une pièce automobile.
Exprimer puis calculer le volume V de solution qu'il pourra
fabriquer en dissolvant dans l'eau un échantillon de masse
m= 200 g d'acétone.

Asked by:
389 Viewed 389 Answers
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Answer (389)

Best Answer
(84)

Bonjour,

Cm = m/V

donc V = m/Cm

Soit : V = 200/150 ≈ 1,33 L

Answered on 27 Agustus 2025

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