51. (v12c-228-8) KN03 va Cu(N03)2 dan iborat aralashma qizdirilganda, 02 ning massa ulushi 41,03% bolgan 31,2 g gazlar aralashmasi hosil bolsa, dastlabki aralashmadagi kaliy nitratning massasini (g) aniqlang.
A) 78 B)60,6
C) 20,2
D) 98,2
51. (v12c-228-8) KN03 va Cu(N03)2 dan iborat aralashma qizdirilganda, 02 ning massa ulushi 41,03% bolgan 31,2 g gazlar aralashmasi hosil bolsa, dastlabki aralashmadagi kaliy nitratning massasini (g) aniqlang.
A) 78 B)60,6
C) 20,2
D) 98,2
Ответ: |
Сборник: Kimyo
Параграф:
49. Aralashmadagi moddalarning tarkibini aniqlash. Aralashmalar
DTM тестирование онлайн | DTM test online