do 500g 10% roztworu dolano 70g wody.Oblicz stężenie powstałego roztworu zmieszano 30g 2% roztworu cukru z 200g 20% roztworu tego samego cukru . Oblicz stęzenie powstałego roztworu

1) mr1 = 500g Cp1 = 10% ms1 = Cp1 * mr1/100% ms1 = 50g   mr2 = 500 + 70g mr2 = 570g ms1 = 50g Cp2 = ms1 * 100%/mr2 Cp2 = 8,77%   2) mr1 = 30g Cp1 = 2% mr2 = 200g Cp2 = 20%   ms1 = Cp1 * mr1/100% ms1 = 0,6g ms2 = Cp2*mr2/100% ms2 = 40g ms = ms1+ms2 ms = 40,6g mr = mr1+mr2 mr = 230g   Cp = ms * 100%/mr Cp = 17,65%