Предмет: Химия, автор: Аноним

Какие реагенты нужно использовать, чтобы получить гидроксид алюминия?

 

AlPO4иH2O

AlBr3иCu(OH)2

Al2(SO4)3иH2O

Al2(SO4)3иKOH

 

Напиши уравнение соответствующей реакции, вычисли, чему равна сумма коэффициентов, и введи эту сумму в качестве ответа.

 

Ответ: .

Ответы

Автор ответа: Buster228
1

Ответ:

Al2(SO4)3+6KOH=2Al(OH)3+3K2SO4

Сумма коэффициентов равна 11(это если сложить перед равно и после равно)

Автор ответа: zubareva45
2

Ответ:

Объяснение:

1) Можно получить гидроксид алюминия:

Al₂(SO₄)₃ и KOH (на первой стадии)

Al₂(SO₄)₃ + 6KOH=2AI(OH)₃↓+3K₂SO₄

Ответ: Сумма коэффициентов: 12

2) Можно получить гидроксид алюминия при гидролизе сульфата алюминия на третей стадии

Al₂(SO₄)₃иH₂O

Первая стадия гидролиза сульфата алюминия:

Al₂(SO₄)₃+2H₂O=2AIOHSO₄+H₂SO₄

Ответ: Сумма коэффициентов:6

Вторая стадия гидролиза сульфата алюминия:

2AIOHSO₄+2H₂O=[AI(OH)₂]₂SO₄+H₂SO₄

Ответ: Сумма коэффициентов:6

Третья стадия гидролиза сульфата алюминия:

[AI(OH)₂]₂SO₄+2H₂O=2AI(OH)₃↓+H₂SO₄

Ответ: Сумма коэффициентов:6

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