oblicz ile gramów wody i ile gramów cukru należy zmieszać aby otzrymać 75 g 12 % roztworu
Dane :
Cp = 12 %
mr = 75 g
m H2O = ?
ms = ?
Cp = ms x 100% / mr
Cp x mr = ms x 100%
ms = Cp x mr / 100%
ms = 12% x 75 g / 100%
ms = 9 g - masa cukru
mH2O = mr - ms
mH2O = 75 - 9 = 66 g - masa wody
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Dane :
Cp = 12 %
mr = 75 g
m H2O = ?
ms = ?
Cp = ms x 100% / mr
Cp x mr = ms x 100%
ms = Cp x mr / 100%
ms = 12% x 75 g / 100%
ms = 9 g - masa cukru
mH2O = mr - ms
mH2O = 75 - 9 = 66 g - masa wody