Do przygotowania spirytusu salicylowego uzyto 12,9cm3 etanolo o d=0,76g/cm3 i 200g kwasu salicylowego.obl.Cp otzymanego roztworu odp-95,3
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0,76g---- 1cm3
xg--------12,9 cm3
x=9,8g
cp=(200/200 + 9,8) *100%
cp=95,3%