Pomocy daje naj!; * 1. Odparowalo 500cm3 wody z 700g 15%roztworu. Oblicz stezenie procentowe roztworu 2.oblicz stworzenie w roztworu otrzymanego po odprawianiu 250g wody z 500g 5%roztworu soli kuchennej 3. Do 200g 10%roztworu soli kamiennej dodano 50g

1. Dane: mr1=700g mr2=700g-500g=200g Cp1=15% Szukane: ms=? Cp2=? ms=Cp1*mr1/100% Cp2=ms*100%/mr2 Obliczenia: ms=15%*700g/100% ms=105g Cp2=105g*100%/200g Cp2=52,5% 2. Dane: mr1=500g mr2=500g-250g=250g Cp1=5% Szukane: ms=? Cp2=? ms=Cp1*mr1/100% Cp2=ms*100%/mr2 Obliczenia: ms=5%*500g/100% ms=25g Cp2=25g*100%/250g Cp2=10% 3. Dane: mr1=200g mr2=200g+50g=250g Cp1=10% Szukane: ms1=? ms2=? Cp2=? ms1=Cp1*mr1/100% ms2=ms1+50g Cp2=ms2*100%/mr2 Obliczenia: ms1=10%*200g/100% ms1=20g ms2=20g+50g ms2=70g Cp2=70g*100%/250g Cp2=28% 4. Dane: mr1=100g mr2=100g-20g+20g=100g Cp1=20% Szukane: ms1=? ms2=? Cp2=? ms1=Cp1*mr1/100% ms2=ms1+50g Cp2=ms2*100%/mr2 Obliczenia: ms1=20%*100g/100% ms1=20g ms2=20g+20g ms2=40g Cp2=40g*100%/100g Cp2=40%