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Cp1=10%
mr1=300g
mw=70g
Szukane:
Cp2
Roz:
ms/mr1=Cp1/100%
ms=mr1*Cp1/100%=300g*10%/100%=30g
mr2= mr1-mw=300g-70g=230g
ms/mr2=Cp2/100%
Cp2= ms*100%/mr2=30g*100%/230g= 13,04%
Odp: Stężenie procentowe otrzymanego roztworu wynosi 13,04%.