Предмет: Химия, автор: Мария97531

Помогите с химией пожалуйста, плохо разбираюсь в таких заданиях

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Ответы

Автор ответа: gavrilka
1
2) 4NH3 + 3O2 -> 2N2 + 6H2O
    N2 + O2 -> 2NO
    2NO + O2 -> 2NO2
    2NO2 + H2O -> HNO3 + HNO2
     BaCl2 + 2AgNO3 -> Ba(NO3)2 + 2AgCl
     Ba(NO3)2 + Na2SO4 -> BaSO4 + 2NaNO3
1) 3Cu+8HNO3 =3Cu(NO3)2+2NO+4H2O
    Ca(OH)2 + 2HNO3 ->Ca(NO3)2 + 2H2O
    Fe2O3 + 6HNO3 -> 2Fe(NO3)3 + 3H2O
    NH3 + HNO3 -> NH4NO3
    CaCO3 + 2HNO3 -> Ca(NO3)2 + H2O + CO2
3) 3Cu+8HNO3 =3Cu(NO3)2+2NO+4H2O
    m(HNO3) = 150 * 0,126 = 18,9 (г)
    18,9/512=x/44,8 => x=1,65 (л)
   Ответ: 1,65 л.
 4) Сами считайте по реакциям:
   4NH3 + 5O2 (Pt) → 4NO + 6H2O
    2NO + O2 → 2NO2
     4NO2 + O2 + 2H2O → 4HNO3.
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