Iron(III) Hydroxide Solubility Concepts

The video tutorial explores the reaction of iron(III) hydroxide with water, initially expecting it to dissociate into ions. However, upon consulting a solubility table, it is determined that iron(III) hydroxide is insoluble in water, resulting in no dissociation. The video concludes with the observation that iron(III) hydroxide remains as a red powder in water.

What is the expected outcome when iron(III) hydroxide is mixed with water?

• It dissolves completely.

• It forms a gas.

• It reacts violently.

• It dissociates into ions.

What ions are expected to form if iron(III) hydroxide dissociates in water?

• Fe2+ and OH-

• Fe3+ and OH-

• Fe2+ and H+

• Fe3+ and O2-

What is the charge of the hydroxide ion formed during dissociation?

• Variable

• Positive

• Negative

• Neutral

What coefficient is needed in front of OH- to balance the dissociation equation of iron(III) hydroxide?

• 4

• 3

• 1

• 2

Why is it important to check a solubility table when predicting the behavior of iron(III) hydroxide in water?

• To confirm the color change.

• To determine the reaction speed.

• To verify its solubility.

• To measure the temperature change.

What does the solubility table indicate about iron(III) hydroxide?

• It is insoluble.

• It is slightly soluble.

• It forms a precipitate.

• It is highly soluble.

What does the 'I' symbol in the solubility table stand for?

• Indeterminate

• Ionic

• Insoluble

• Intense

What happens to iron(III) hydroxide when placed in water according to the solubility table?

• It remains as a solid.

• It dissolves completely.

• It forms a gas.

• It reacts with water.

What is the appearance of iron(III) hydroxide in water when it does not dissolve?

• It forms a clear solution.

• It turns the water blue.

• It settles as a red powder.

• It evaporates.