Ile gramów jodu i ile cm3 alkoholu potrzeba do sporządzenia 20g jodu 2% gęstości alkoholu wynosi 0,78 g/cm3 ;)))
mr=20g
Cp=2%
ms=Cp*mr/100%
ms=2*20/100
ms = 0,4g jodu
20g jodyny - 0,4g jodu = 19,6g alkoholu
m=19,6g
d=0,78g/sm3
v=m/d
v=19,6/0,78
v = 25,13cm3 alkoholu
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mr=20g
Cp=2%
ms=Cp*mr/100%
ms=2*20/100
ms = 0,4g jodu
20g jodyny - 0,4g jodu = 19,6g alkoholu
m=19,6g
d=0,78g/sm3
v=m/d
v=19,6/0,78
v = 25,13cm3 alkoholu