Zmieszano 3 roztwory. 100g roztworu 70%, 300g roztworu 30% i 2400g roztworu 5%. Oblicz stężenie procentowe roztworu.
Zmieszano 3 roztwory. 100g roztworu 70%, 300g roztworu 30% i 2400g roztworu 5%. Oblicz stężenie procentowe roztworu.
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Cp1=70%
mr1=100g
ms1=Cp1*mr1/100%
ms1=70*100/100
ms1 = 70g
Cp2=30%
mr2=300g
ms2=Cp2*mr2/100%
ms2=30*300/100
ms2 = 90g
Cp3=5%
mr3=2400g
ms3=Cp3*mr3/100%
ms3=5*2400/100
ms3 = 120g
mx=ms1+ms2+ms3
mx=70g+90g+120g
mx=280g
mrx=mr1+mr2+mr3
mrx=100g+300g+2400g
mrx=2800g
Cpx=msx*100%/mrx
Cpx=280*100/2800
Cpx = 10%