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2014-11-13T14:33:40+02:00
C% = md/ms*100
md = 400*10/100 = 40 g
md1 = md2
ms2 = ms1 - m apa
c final = md2/ms2 * 100
=> 16 = 40/(400-x) * 100
=> 4000 = 6400 - 16x => x = 150 g apa evaporata
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