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mr1=300g
Cp1=10%
mr2=200g
Cp2=15%
Szukane:
Cp3=?
Rozwiązanie:
ms1=10/100 * 300= 30g
ms2=15/100 * 200= 30g
ms=30+30=60g
mr=200g+300g=500g
Cp3=60/500 * 100%=12%
Odp. Stężenie procentowe tego roztworu wynosi 12%.