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Chemistry, 18.01.2021 14:00 blackkiki4352
2. Andrei prepară în laborator o soluție de zahăr prin amestecarea a 655 g de apă cu 245g de zahăr. Se cere:
a) Notează masa de solvat si masa de apă din soluție. 0.5p
b) Calculează masa de soluție formată și concentrația ei procentuală. 1 p
c) Notează dacă soluția obținută de Andrei este diluată sau concentrată. 0.5 p
d) Peste soluția preparată mai sus Andrei adaugă 50g de zahăr. Ce concentrație procentuală are noua soluție formată. Îmi trebuie răspunsurile rapid
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2. Andrei prepară în laborator o soluție de zahăr prin amestecarea a 655 g de apă cu 245g de zahăr....
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