Question

What is the chemical formula for Iron(III) hydroxide? Hydroxide is OH O a. Fe(OH)2 O b. FeOH Fe2OH O c. O d. Fe(OH)3 O e. Fe2(OH)3

Answer 1

The correct chemical formula for Iron(III) hydroxide is Fe(OH)3, which is formed by combining one iron ion with a +3 charge (Fe3+) with three hydroxide ions (OH-).

Step-by-step explanation:

The chemical formula for Iron(III) hydroxide is Fe(OH)3. This compound consists of an iron ion with a +3 charge (Fe3+) and three hydroxide ions (OH-). The number in parentheses after iron indicates the oxidation state of iron, which in this case is +3. The formula reflects the stoichiometry required to balance the charges, resulting in one Fe3+ for every three OH- ions to form the neutral compound. Therefore, the correct answer is Fe(OH)3.

Answer 2

`Fe(OH)_(3)`

Step-by-step explanation:

The problem gives you the systematic name for the Iron (III) hydroxide, it means that the Iron in the compound is using its oxydation number +3, that is:

`Fe^(+3)`

And as an hydroxide, has the hydroxide ion, which oxidation number is -1:

`(OH)^(-1)`

To form the Iron (III) hydroxide there are the iron and the hydroxide ion, and their oxidation numbers take its position below the opposite ion, that is:

`Fe^(+3)+(OH)^(-1)=Fe(OH)_(3)`