Question

Fe(OH) 3 → Fe 2 O 3 → Fe(NO 3 ) 3 → Fe(OH) 3 → FePO 4

Answer 1

1)2Fe(OH)3=Fe2O3+3H2O

2)Fe2O3+6HNO3=2Fe(NO3)3+

3H2O

3)Fe(NO3)3+3KOH=Fe(OH)3+

3KNO3

4)Fe(OH)3+H3PO4=FePO4+3H2O

Answer 2

The chemical reactions you've provided describe a series of transformations involving iron compounds. Let's go through each step:

1. Fe(OH)3 (Iron(III) hydroxide) → Fe2O3 (Iron(III) oxide): This reaction represents the dehydration of iron(III) hydroxide, which results in the formation of iron(III) oxide.

2. Fe2O3 (Iron(III) oxide) → Fe(NO3)3 (Iron(III) nitrate): In this step, iron(III) oxide reacts with nitric acid (HNO3) to produce iron(III) nitrate.

3. Fe(NO3)3 (Iron(III) nitrate) → Fe(OH)3 (Iron(III) hydroxide): When iron(III) nitrate is treated with a base, such as sodium hydroxide (NaOH), iron(III) hydroxide precipitates out of the solution.

4. Fe(OH)3 (Iron(III) hydroxide) → FePO4 (Iron(III) phosphate): In this reaction, iron(III) hydroxide reacts with phosphoric acid (H3PO4) to form iron(III) phosphate.

The overall reaction sequence can be summarized as follows: Fe(OH)3 → Fe2O3 → Fe(NO3)3 → Fe(OH)3 → FePO4

It's important to note that the reaction conditions, such as temperature, pH, and concentrations of reactants, can influence the reaction outcomes. Additionally, the reaction may require the use of specific catalysts or solvents.