Cantareste 10 g piatra vanata . Ce volum de apa este necesar pentru a prepara o solutie cu concentratia 10% .

Răspunsul a fost dat de: USER2537
29 Agustus 2025 chimie 5 minute
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Clasă: Education Materie: chimie
Cantareste 10 g piatra vanata . Ce volum de apa este necesar pentru a prepara o solutie cu concentratia 10% .
Întrebare a fost pusă de:
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(151)

md= 10g
C= 10%

C/100=md/ms de aici scoatem ms=md×100/C= 10×100/10=100g solutie
ms= md+ mapa =) mapa= ms- md = 100-10=90g apa
Răspunsul a fost dat în data 29 Agustus 2025

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