Oblicz, ilu gramów wodorotlenku sodu i wody należ użyć, aby otrzymać 200g roztworu 5_procentowego.
mr=200g
Cp=5%
ms=?
mw=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms=5%*200g/100%
ms=10g wodorotlenku sodu
mw=mr-ms
mw=200g-10g
mw=190g wody
Cp=ms:mr*100%
ms=Cp*mr:100%
ms=5%*200g:100%
ms=10 g
mrozp=mr-ms
mrozp=200 g -10 g
mrozp=190 g
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mr=200g
Cp=5%
ms=?
mw=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms=5%*200g/100%
ms=10g wodorotlenku sodu
mw=mr-ms
mw=200g-10g
mw=190g wody
Cp=ms:mr*100%
ms=Cp*mr:100%
ms=5%*200g:100%
ms=10 g
mrozp=mr-ms
mrozp=200 g -10 g
mrozp=190 g