Odpowiedzi

2009-12-09T20:12:06+01:00
1) Cm=n/v v= 0,1dm3
Cm = 0,5 / 0,1 = 5mol/dm3

2)Cp = ms/mr *100%
Cp = 15g/135g * 100% = 11,2 %
2009-12-09T20:11:34+01:00
1
Cm= n/v
100cm3= 0,1dm3

Cm=0,5/0,1= 5mol/dm3

2
Cp=masa sub/masa roztworu * 100%
mr=15+120=135

Cp= 15/135*100%= ok 11%