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Cp = 15%
mr = 80g
mH2O = 20g
Szukane:
Cp2 = ?
Wzór:
Cp = ms/mr*100%
ms = mr*Cp/100%
ms = 80*15/100%
ms = 12g sub
mr po dolaniu wody = 80+20 = 100g
Cp2 = ms/mr*100%
Cp2 = 12/100*100*
Cp2 = 12%