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mr1=50 g
mr2=50+14=64g
Cp1=32%
Szukane:
Cp2=?
Cp=ms*100%/ mr
ms=Cp*mr/100%
ms=32*50/100= 16 g - masa substancji
Cp2= ms*100%/mr
Cp2=16g*100%/64g
Cp2=25%