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2014-11-18T12:32:39+02:00
MASA=DENSITXVOLUM
m=200x1.224=244.8 g

100 g solutie......30 g H2SO4.........70g apa

244.8g   ...............x.......................y

x=244.8x30/100=73.44 g H2SO4

y=244.8x70/100=171.36 g apa
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