Oblicz stezenie pcetowe rozstworu powstalego przez zmieszanie : 50g roztworu o stezeniu 10 procent 100 g roztworu o stezeniu 20 procent dane szukane itd
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Cp1= 20% m1=100g
Cp2= 10% m2= 50g
Cpx=?
20 Cpx-10
Cpx
10 20-Cpx
100/50=(Cpx- 10)/(20-Cpx)
100(20 - Cpx) = 50(Cpx-10)
2000 - 100Cpx = 50Cpx - 500
-100Cpx - 50Cpx = -500 - 2000 /*-1
150Cpx = 2500 /150
Cpx = 16,67%
Cp1=10%
mr1=50g
ms1=Cp1*mr1/100%
ms1=10*50/100
ms1=5g
Cp2=20%
mr2=100g
ms2=Cp1*mr2/100%
ms2=20*100/100
ms2=20g
ms=ms1+ms2=5g+20g=25g
mr=mr1+mr2=50g+100g=150g
Cp=ms*100%/mr
Cp=25*100/150
Cp = 16,67%