ile g jodu nalezy rozpuscic w etanolu aby otrzymac 200 g roztworu 4-procentowego
Cp-4%
Mr-200g
Ms-x
ms=4%*200g/100%
ms=8g jodu tyle
Cp = 4%
mr = 200 g
ms = ?
Cp = ms * 100%/ mr
4% = ms * 100% / 200g / : 100%
0,04 = ms / 200g / * 200
8 g = ms
Odp. Należy rozpuścić 8 g jodu
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Cp-4%
Mr-200g
Ms-x
ms=4%*200g/100%
ms=8g jodu tyle
Cp = 4%
mr = 200 g
ms = ?
Cp = ms * 100%/ mr
4% = ms * 100% / 200g / : 100%
0,04 = ms / 200g / * 200
8 g = ms
Odp. Należy rozpuścić 8 g jodu