zad.1
[tex]SO_3+H_2O-->H_2SO_4[/tex]
zad.2
mr=250g
Cp=8%
ms=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms=8%*250g/100%
ms=20g
zad.3
mr₁=10g
Cp₁=98%
ms₁=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:100%
ms=Cp*mr/100%
ms₁=10g*98%/100%
ms₁=9,8g
ms₂=ms₁=9,8g
Cp₂=2%
mr₂=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:Cp
mr=ms*100%/Cp
mr₂=9,8g*100%/2%
mr₂=490g
mw=mr₂-mr₁
mw=490g-10g
mw=480g wody