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............................... 0,1M
xcm³ 0M .................................... 1,5-0,1=1,4
80/x = 0,1/1,4
0,1x = 1,4*80
0,1x = 112
x = 1120cm³
Cm=n/v
n=Cm*v
n=1,5*0,08=0,12mol
v=n/Cm
v=0,12/0,1=1,2dm3
1200-80=1120cm3 <--- tyle objętości wody należy dolać