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Cm=6mol/dm3
d=1,2g/cm3
m(1dm3)=1,2g/cm3 * 1000cm3=1200g
n(dla 1dm3)=6mol
Mkoh=56g/mol
ms(dla 1dm3)=6mol*56g/mol=336g
Cp=336g/1200g *100%=28%
Krzyż:
28% x1
15%
2% x2 +
x1=13 x2=13
Stosunek masowy- (28% do 2%)- 13:13 /:13 => 1:1
2. Metoda obliczeniowa.
Cp=ms/mr-r*100%
15%=28%*x+2%*y/x+y
0.15=0.28x+0,02y/x+y /*(x+y)
0,15x+0,15y=0.28x+0,02y
0,13y=0,13x /:0,13
y=x => stosunek masowy 1:1