Kalsiy gidrid va bariy gidriddan iborat 50,1 g aralashma suv bilan reaksiyaga kirishganda 1 mol gaz ajraldi. Dastlabki aralashmadagi bariy gidridning massasini (g) aniqlang.

  1. 20,85
  2. 41,7
  3. 27,8
  4. 13,9

📝 Detailed explanation

CaH₂ + 2H₂O → Ca(OH)₂ + 2H₂; BaH₂ + 2H₂O → Ba(OH)₂ + 2H₂. Har 1 mol gidridtan 2 mol H₂. Aralashma: 42x + 139y = 50,1 va 2x + 2y = 1. Yechim: x = 0,2; y = 0,3. m(BaH₂) = 0,3·139 = 41,7 g.
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