Chemistry, 16.11.2020 18:10, kmcpig

Rezolvati urmatoarele probleme, urgent, dau coroana 1. În 400 grame soluţie se găsesc 80 grame zahăr. Ce concentraţie procentuală are soluţia?
2. În 500 Kg soluţie sunt dizolvate 75 Kg sodă de rufe. Ce concentraţie procentuală are soluţia ?
3. Ce cantitate de soluţie de concentraţie 15% se obţine prin dizolvarea a 60 Kg piatră vânătă în apă ?

Answers: 2

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Rezolvati urmatoarele probleme, urgent, dau coroana 1. În 400 grame soluţie se găsesc 80 grame zahă...

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