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Cm=0,1mol/dm3
n=Cm*v=0,5dm3*0,1mol/dm3=0,05mol
Al(NO3)3 -> Al3+ + 3NO3-
1mol Al(NO3)3 - 1mol Al3+ - 3 mol NO3-
0,05mol- x1 - x2
x1=0,05mol - liczba moli jonów Al3+
x2=0,15mol - liczba moli jonów NO3-