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1000cm3 * 1,2g/cm3 = 1200g
5,5mol KOH = 5,5 * (39+16+1) = 308g
cp= (308g/1200g)* 100% = 26,67%
Dane:
d=1,2 g/cm3 =1200 g/dm3
MKOH= 40+16+1= 57 g/mol
Cmol= 5,5 mol/dm3
wzór:
Cp=Cmol*N*100%/d
obliczenia:
Cp=5,5 mol/dm3 * 57 g/mol * 100%/ 1200 g/dm3
Cp=26% (w zaokrągleniu)
Pewności nie mam, ale myślę, że będzie ok. ;)