MZnSO4=161 g/mol
mw=500g
ms=120 g
d=1,2g/cm3=1200g/dm3
mr=ms+mw=620g
n=m/M=120/161=0,745 moli
d=m/V => V=m/d
V=620/1200=0,5167 dm3
Cm=n/V=0,745/0,5167=1,44 mol/dm3
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MZnSO4=161 g/mol
mw=500g
ms=120 g
d=1,2g/cm3=1200g/dm3
mr=ms+mw=620g
n=m/M=120/161=0,745 moli
d=m/V => V=m/d
V=620/1200=0,5167 dm3
Cm=n/V=0,745/0,5167=1,44 mol/dm3