Oblicz masę wodorotlenku sodu który znajduje się w 150 cm3 roztworu 12% o gęstości 1,4 g/cm3, daje naj .
mr=150cm³*1,4g/cm³=210g
ms=Cp*mr/100%
ms=12%*210g/100%
ms=25,2g
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mr=150cm³*1,4g/cm³=210g
ms=Cp*mr/100%
ms=12%*210g/100%
ms=25,2g