Odpowiedź:
Wyjaśnienie:
Wiersz I
Cm = n/V
Cm = 6/3= 2mol/dm³
Wiersz II
Cp = ms*100%/mr
ms = Cp*mr/100%
ms = 20%*50g/100%
ms = 10g
Wiersz III
mr = ms*100%/Cp
mr = 15g*100%/10%
mr =150g
Wiersz IV
V = n/Cm
V = 3/2
V = 1,5dm³ = 1500cm³
Wiersz V
n = V*Cm
n = 7*0,5
n= 3,5 mola
M Ca(OH)₂=74g/mol
1 mol...........74g
3,5 mola.......x
x = 259g