При определённых условиях смесь 10,08 л N₂ и 1,12 л H₂E имеет плотность по гелию 9,55. Определите формулу H₂E.

  1. H₂Te
  2. H₂O
  3. H₂S
  4. H₂Se

📝 Detailed explanation

M̄=9,55·4=38,2. n(N₂)=0,45, n(H₂E)=0,05 (в равных условиях). m=0,45·28+0,05·M(H₂E)=38,2·0,5=19,1 → M(H₂E)=130 → E=128 → Te. H₂Te.
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