Do 0.3 dm szczesciennych roztworu o stezeniu 9% i gestosci 1.08 g/cm szczescienny dosypano 12g substancji rozpuszczanej. Oblicz stezenie procentowe tego roztworu
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1cm3 - 1.08g
300cm3 -x =324g
324-100%
x - 9%
x=29,16g
Mc=324g+12g=336g
Ms=29,16g +12g =41.16g
C% = 41.16g/336g x100% =12.25%