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10g jodu------100g jodyny
xg jodu---------15g jodyny
x = 1,5g jodu
15g jodyny - 1,5g jodu = 13,5g alkoholu
d=0,78g/cm3
m=13,5g
v=?
v=m/d
v=13,5/0,78
v = 17,3cm³ alkoholu
Cp=10%
mr=15g
ms=10%*15g/100%=1,5g
m alk=15g-1,5g=13,5g
V=m/d
d=0,78g/cm³
V=13,5g/0,78=17,31cm³