Câți atomi de hidrogen conține un amestec format din 0,30 kg etan și 220 grame de propan ( se consideră N(Avogadro)=6,0×10-23 particule pe mol).
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2 point(s)Câți atomi de hidrogen conține un amestec format din 0,30 kg etan și 220 grame de propan ( se consideră N(Avogadro)=6,0 x 10-23 particule pe mol).
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