Kaliy permanganat va Bertole tuzidan iborat 119,3 g aralashma marganes (IV) oksid katalizatori ishtirokida to'la parchalanganda 13,44 litr (n.sh.) gaz ajraldi. Dastlabki aralashmadagi moddalarning miqdori (mol) yig'indisini toping.

  1. 0,8
  2. 0,6
  3. 0,7
  4. 1

📝 Detailed explanation

2KMnO₄ → K₂MnO₄ + MnO₂ + O₂; 1 mol KMnO₄ dan 0,5 mol O₂.
2KClO₃ → 2KCl + 3O₂ (MnO₂ katalizator); 1 mol KClO₃ dan 1,5 mol O₂.
Aytaylik a mol KMnO₄ (M=158) va b mol KClO₃ (M=122,5).
158a + 122,5b = 119,3.
0,5a + 1,5b = 13,44/22,4 = 0,6 mol O₂.
2-tenglamadan: a + 3b = 1,2 → a = 1,2 − 3b.
158(1,2 − 3b) + 122,5b = 119,3.
189,6 − 474b + 122,5b = 119,3.
−351,5b = −70,3 → b = 0,2 mol; a = 1,2 − 0,6 = 0,6 mol.
Yig'indisi: a + b = 0,6 + 0,2 = 0,8 mol.
Javob: 0,8 mol.
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