Net Ionic Equations and Solubility

This video tutorial explains how to write a balanced net ionic equation for the reaction between aluminum hydroxide and sulfuric acid. It covers balancing the molecular equation, determining the states of substances, splitting strong electrolytes into ions, and identifying spectator ions to derive the net ionic equation. Key concepts include solubility rules and the importance of recognizing spectator ions.

What is the first step in writing a balanced net ionic equation?

• Write the complete ionic equation

• Determine the solubility of compounds

• Identify spectator ions

• Balance the molecular equation

Which of the following is generally not soluble in water?

• Sodium hydroxide

• Sulfuric acid

• Potassium hydroxide

• Aluminum hydroxide

What state symbol is used for a substance that dissolves in water?

• (s)

• (l)

• (aq)

• (g)

What is the charge of the sulfate ion?

• 1+

• 0

• 2-

• 3+

When writing net ionic equations, which type of substances are not split into ions?

• Gases

• Solids

• Liquids

• Aqueous solutions

What is the purpose of identifying spectator ions in a reaction?

• To balance the equation

• To calculate molarity

• To simplify the net ionic equation

• To determine solubility

Which ions are removed to form the net ionic equation?

• Only cations

• All ions

• Only anions

• Spectator ions

Why is it important to know the solubility of compounds in net ionic equations?

• To predict reaction speed

• To determine the physical state

• To identify spectator ions

• To ensure correct stoichiometry

What is the net ionic equation for the reaction between aluminum hydroxide and sulfuric acid?

• 2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O

• 2Al(OH)3 + 6H+ → 2Al3+ + 6H2O

• 2Al3+ + 3SO4 2- → Al2(SO4)3

• Al(OH)3 + H2SO4 → Al2(SO4)3 + H2O

What is the charge of aluminum ions in the net ionic equation?

• 2+

• 1+

• 3+

• 4+