3 mol H₂ va 2 mol O₂ idishga joylanib, to'liq reaksiyaga kirishtirildi. Reaksiya tugagach, idish normal sharoitgacha sovutildi. Bunda gaz fazasida umumiy necha gramm modda(lar) bo'ladi?

  1. 2
  2. 16
  3. 54
  4. 70

📝 Detailed explanation

2H₂ + O₂ → 2H₂O.
3 mol H₂ va 2 mol O₂ bo'lsa, H₂ yetishmaydi (steximometrik nisbat 2:1).
3 mol H₂ uchun 1,5 mol O₂ kerak. Demak H₂ to'liq sarflanadi, O₂ dan 2 - 1,5 = 0,5 mol ortib qoladi.
Normal sharoitda suv suyuq holatda bo'ladi, shuning uchun gaz fazasida faqat ortib qolgan O₂ qoladi.
m(O₂) = 0,5 × 32 = 16 g.
17 / 30 (57%)
Question 17 of 30
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