Iron(III) Bromide and Ion Behavior

The video tutorial explores the solubility of iron(III) bromide (FeBr3) in water. It begins by introducing the concept of solubility and the need to determine if FeBr3 will dissolve and dissociate into ions. The solubility rules are discussed, highlighting that bromide compounds are generally soluble with few exceptions. The video explains the dissociation process of FeBr3 into iron(III) ions and bromide ions, emphasizing the charges of these ions. The formation of the chemical equation for this process is demonstrated, with a note on how water is represented in the equation. The tutorial concludes with additional notes on solubility and the representation of water in chemical equations.

What is the main purpose of examining the solubility of Iron(III) Bromide in water?

• To see if it changes color in water

• To determine if it can be used as a solid

• To find out if it will dissolve and dissociate into ions

• To check if it can be used as a gas

Which ions are we interested in when applying solubility rules to Iron(III) Bromide?

• Iron(II) ion and sulfate ion

• Sodium ion and bromide ion

• Iron(III) ion and bromide ion

• Iron(II) ion and chloride ion

According to solubility rules, how do bromide ions generally behave in water?

• They are insoluble with no exceptions

• They are soluble with a few exceptions

• They are always insoluble

• They are soluble only in hot water

What is the charge on the bromide ion?

• 2+

• 1-

• 3+

• 0

What is the charge on the iron ion in Iron(III) Bromide?

• 1+

• 2+

• 3+

• 4+

How many bromide ions are present when Iron(III) Bromide dissociates in water?

• Three

• Two

• Four

• One

What does the term 'aqueous' indicate in the chemical equation for Iron(III) Bromide?

• The substance is a solid

• The substance is a gas

• The substance is dissolved in water

• The substance is a liquid

Where is water sometimes shown in the chemical equation for Iron(III) Bromide?

• To the left of the reactants

• Above the arrow

• To the right of the products

• Below the arrow