Question

Осуществить цепочку превращений Al(NO3)3-Al(OH)3-AlCl3.

Answer 1

Al(NO3)3 + 3KOH — Al(OH)3 + 3KNO3
Al(OH)3 + 3HCl — AlCl3 + 3H2O

Answer 2

Chain of Transformations: Al(NO3)3 - Al(OH)3 - AlCl3

To transform Al(NO3)3 into Al(OH)3 and then into AlCl3, we need to follow a series of chemical reactions. Here is the chain of transformations:

1. Al(NO3)3 to Al(OH)3: - Al(NO3)3 is reacted with a base, such as NaOH or KOH, to form Al(OH)3. - The balanced chemical equation for this reaction is: ``` Al(NO3)3 + 3NaOH → Al(OH)3 + 3NaNO3 ``` - This reaction is a double displacement reaction, where the nitrate ions (NO3-) from Al(NO3)3 are replaced by hydroxide ions (OH-) from NaOH, resulting in the formation of Al(OH)3. - The reaction can also be written in ionic form as: ``` Al3+ + 3NO3- + 3Na+ + 3OH- → Al(OH)3 + 3Na+ + 3NO3- ``` - The Al(OH)3 formed is a white precipitate.

2. Al(OH)3 to AlCl3: - Al(OH)3 can be converted to AlCl3 by reacting it with hydrochloric acid (HCl). - The balanced chemical equation for this reaction is: ``` Al(OH)3 + 3HCl → AlCl3 + 3H2O ``` - This reaction is a neutralization reaction, where the hydroxide ions (OH-) from Al(OH)3 react with the hydrogen ions (H+) from HCl to form water (H2O), and the aluminum ions (Al3+) from Al(OH)3 combine with the chloride ions (Cl-) from HCl to form AlCl3. - The reaction can also be written in ionic form as: ``` Al3+ + 3OH- + 3H+ + 3Cl- → AlCl3 + 3H2O ``` - The AlCl3 formed is a white solid.

So, the complete chain of transformations is: Al(NO3)3 + 3NaOH → Al(OH)3 + 3NaNO3 Al(OH)3 + 3HCl → AlCl3 + 3H2O

Please note that the reactions mentioned above are simplified representations and may not account for all the possible side reactions or conditions. It is always important to consider the specific reaction conditions and stoichiometry when performing chemical transformations.

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