Question

Осуществите цепочку превращений: HNO3->Fe(NO3)3->Al(NO3)3->NaAlO2->Al(NO3)3

Answer 1

3HNO₃ + Fe(OH)₃ = Fe(NO₃)₃ + 3H₂O
Fe(NO₃)₃  + Al = Fe +Al(NO₃)₃
Al(NO₃)₃  + 4NaOH = NaAlO₂ + 2H₂O + 3NaNO₃
NaAlO₂+ 4HNO₃ = Al(NO₃)₃ + NaNO₃ + 2H₂O

Answer 2

Chain of Transformations: HNO3 -> Fe(NO3)3 -> Al(NO3)3 -> NaAlO2 -> Al(NO3)3

To understand the chain of transformations from HNO3 to Al(NO3)3, let's break it down step by step:

1. HNO3 (Nitric Acid) to Fe(NO3)3 (Iron(III) Nitrate): - Nitric acid (HNO3) is a strong acid commonly used in laboratories and industries. - Iron(III) nitrate (Fe(NO3)3) is a compound formed by the reaction of nitric acid with iron. - The balanced chemical equation for this reaction is: 8HNO3 + 2Fe -> 2Fe(NO3)3 + 4H2O. - This reaction involves the oxidation of iron by nitric acid, resulting in the formation of iron(III) nitrate and water.

2. Fe(NO3)3 (Iron(III) Nitrate) to Al(NO3)3 (Aluminum Nitrate): - To transform Fe(NO3)3 to Al(NO3)3, we need to replace iron with aluminum. - This can be achieved by a displacement reaction, where aluminum reacts with iron(III) nitrate to form aluminum nitrate and iron. - The balanced chemical equation for this reaction is: 2Al + 3Fe(NO3)3 -> 2Al(NO3)3 + 3Fe. - In this reaction, aluminum displaces iron from the iron(III) nitrate, resulting in the formation of aluminum nitrate and iron.

3. Al(NO3)3 (Aluminum Nitrate) to NaAlO2 (Sodium Aluminum Oxide): - To transform Al(NO3)3 to NaAlO2, we need to react aluminum nitrate with sodium hydroxide (NaOH). - The balanced chemical equation for this reaction is: Al(NO3)3 + 3NaOH -> NaAlO2 + 3HNO3. - In this reaction, sodium hydroxide reacts with aluminum nitrate to form sodium aluminum oxide and nitric acid.

4. NaAlO2 (Sodium Aluminum Oxide) to Al(NO3)3 (Aluminum Nitrate): - To transform NaAlO2 back to Al(NO3)3, we need to react sodium aluminum oxide with nitric acid. - The balanced chemical equation for this reaction is: NaAlO2 + 3HNO3 -> Al(NO3)3 + NaNO3 + H2O. - In this reaction, nitric acid reacts with sodium aluminum oxide to form aluminum nitrate, sodium nitrate, and water.

So, the complete chain of transformations is as follows: HNO3 -> Fe(NO3)3 -> Al(NO3)3 -> NaAlO2 -> Al(NO3)3.

Please note that the reactions mentioned above are balanced chemical equations and represent the stoichiometric ratios of the reactants and products involved in each transformation.

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