Zad.25. Z 750 cm3 1 M roztworu KOH odparowano 100 cm 3wody. Obliczyć Cm po odparowaniu.
V=750cm3
Cm=1mol/dm3
1mol---------1000cm3
x ----------750cm3
____________________
x=0,75mola
0,75mola------650cm3
x---------------1000cm3
________________________
x=1,15 mola/1 dm3
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V=750cm3
Cm=1mol/dm3
1mol---------1000cm3
x ----------750cm3
____________________
x=0,75mola
0,75mola------650cm3
x---------------1000cm3
________________________
x=1,15 mola/1 dm3