W ilu gramach wody nalezy rozpuscic 12 g azotu srebra aby otrzymac 8% roztwor.
xg*0%+12g*100%=(xg+12g)8%
1200=8x+96
8x=1104
x=138[g]
ms=12g
Cp=8%
mr=?
mw=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:Cp
mr-ms*100%/Cp
mr=12g*100%/8%
mr=150g
mw=mr-ms
mw=150g-12g
mw=138g
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W ilu gramach wody nalezy rozpuscic 12 g azotu srebra aby otrzymac 8% roztwor.
xg*0%+12g*100%=(xg+12g)8%
1200=8x+96
8x=1104
x=138[g]
ms=12g
Cp=8%
mr=?
mw=?
Cp=ms/mr * 100% /*mr
Cp*mr=ms*100% /:Cp
mr-ms*100%/Cp
mr=12g*100%/8%
mr=150g
mw=mr-ms
mw=150g-12g
mw=138g