Do 30 gram 10 procentowego roztworu dodano 50 gram 20 procentowego roztworu oblicz stężenie procentowe roztworu.
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mr1=30g
Cp1=10%
mr2=50g
Cp2=20%
mr3=30+50=80g
Szukane:
ms1=?
ms2=?
ms3=?
Cp3=?
ms1=Cp1*mr1/100%
ms2=Cp2*mr2/100%
ms3=ms1+ms2
Cp3=ms3*100%/mr3
Obliczenia:
ms1=30g*10%/100%
ms1=3g
ms2=50g*20%/100%
ms2=10g
ms3=3g+10g=13g
Cp3=13g*100%/80g
Cp3=16,25%