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m=V*d
m=200*1,1=220g
VH2O=100cm3=100g (bo d=1g/cm3)
Cp=20%
Cp=ms/mr*100%
20%=ms/220*100%
ms=44g
220-44=176g wody
nowe stężenie:
Cp=?
ms=44g
mw=176+100=276g
mr=276+44=320g
Cp=44/320*100%=13,75%