Oblicz ile gramów wodorotlenku sodu i wody należy uzyć aby otrzymać 200g roztworu 5'procentowego .
Cp=5%
mr=200g
ms=Cp*mr/100%
ms=5*200/100
ms=10g NaOH
200g roztworu - 10g soli = 190g wody
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Cp=5%
mr=200g
ms=Cp*mr/100%
ms=5*200/100
ms=10g NaOH
200g roztworu - 10g soli = 190g wody