MgCl2*6H2O
M(MgCl2*6H2O)=203 g/mol
M(MgCl2)=95 g/mol
200 cm3 wody=200g
(x*95/203)/200+x = 0,1
95x/203=20+0,1x
95x=4060 +20,3x
74,7x=4060
x=54,35 g - tyle MgCl2*6H2O potrzeba
200+54,35*(6*18/203)=200+54,35*0,532=200+28,92=228,92 g - masa wody w roztworze
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MgCl2*6H2O
M(MgCl2*6H2O)=203 g/mol
M(MgCl2)=95 g/mol
200 cm3 wody=200g
(x*95/203)/200+x = 0,1
95x/203=20+0,1x
95x=4060 +20,3x
74,7x=4060
x=54,35 g - tyle MgCl2*6H2O potrzeba
200+54,35*(6*18/203)=200+54,35*0,532=200+28,92=228,92 g - masa wody w roztworze