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Cp1=2%
ms1=?
100% - 250g
2% - x ms
ms= 2x250g / 100 = 5g
ms1= 5g
ms1=ms2
ms2=5g
mr=250g-50g=200g
Cp=?
100% - 200g
x% - 5g
Cp= 100%x5/ 200g = 2,5 %
Odpowiedź: Stężenie tego roztworu wynosi 2,5%.
:)