Asksia AI LOGO

Sia

青州's Question
Chemistry
Posted 10 months ago

Write a net ionic equation to represent the reaction of (a) aqueous strontium hydroxide with nitric acid; (b) solid aluminum hydroxide with hydrochloric acid.
Sign in to unlock the answer
Answer from Sia
Posted 10 months ago
Solution
1
Write the balanced molecular equation for the reaction of aqueous strontium hydroxide with nitric acid: Strontium hydroxide (\text{Sr(OH)_2}) reacts with nitric acid (HNO3\text{HNO}_3) to form strontium nitrate (Sr(NO3)2\text{Sr(NO}_3)_2) and water (H2O\text{H}_2\text{O}). The balanced molecular equation is: \text{Sr(OH)_2 (aq) + 2HNO}_3 \text{(aq)} \rightarrow \text{Sr(NO}_3)_2 \text{(aq) + 2H}_2\text{O (l)}
2
Write the net ionic equation: The net ionic equation includes only the species that undergo a chemical change. Spectator ions are omitted. Strontium hydroxide dissociates into Sr2+\text{Sr}^{2+} and OH−\text{OH}^- ions, and nitric acid dissociates into H+\text{H}^+ and NO3−\text{NO}_3^- ions. The NO3−\text{NO}_3^- ions are spectator ions and do not participate in the reaction. The net ionic equation is: Sr2+(aq) + 2OH−(aq) + 2H+(aq)→Sr2+(aq) + 2H2O (l)\text{Sr}^{2+} \text{(aq) + 2OH}^- \text{(aq) + 2H}^+ \text{(aq)} \rightarrow \text{Sr}^{2+} \text{(aq) + 2H}_2\text{O (l)}
1 Answer
Sr2+(aq) + 2OH−(aq) + 2H+(aq)→Sr2+(aq) + 2H2O (l)\text{Sr}^{2+} \text{(aq) + 2OH}^- \text{(aq) + 2H}^+ \text{(aq)} \rightarrow \text{Sr}^{2+} \text{(aq) + 2H}_2\text{O (l)}
Key Concept
Net ionic equations
Explanation
Net ionic equations show only the species that participate in the reaction, omitting spectator ions.
Solution
1
Write the balanced molecular equation for the reaction of solid aluminum hydroxide with hydrochloric acid: Aluminum hydroxide (\text{Al(OH)_3}) reacts with hydrochloric acid (HCl\text{HCl}) to form aluminum chloride (AlCl3\text{AlCl}_3) and water (H2O\text{H}_2\text{O}). The balanced molecular equation is: \text{Al(OH)_3 (s) + 3HCl (aq)} \rightarrow \text{AlCl}_3 \text{(aq) + 3H}_2\text{O (l)}
2
Write the net ionic equation: The net ionic equation includes only the species that undergo a chemical change. Aluminum hydroxide is a weak base and does not fully dissociate, but it will react with H+\text{H}^+ ions from the hydrochloric acid to form water. The net ionic equation is: \text{Al(OH)_3 (s) + 3H}^+ \text{(aq)} \rightarrow \text{Al}^{3+} \text{(aq) + 3H}_2\text{O (l)}
2 Answer
\text{Al(OH)_3 (s) + 3H}^+ \text{(aq)} \rightarrow \text{Al}^{3+} \text{(aq) + 3H}_2\text{O (l)}
Key Concept
Net ionic equations
Explanation
Net ionic equations show the actual chemical species that are involved in the reaction, excluding the spectator ions and states of matter.

Not the question you are looking for? Ask here!

Enter question by text

Enter question by image

Unlock Smarter Learning with AskSia Super!

Join Super, our all-in-one AI solution that can greatly improve your learning efficiency.

30% higher accuracy than GPT-4o
Entire learning journey support
The most student-friendly features
Study Other Question