Chapter 3 Lecture Problems

Acid Base Reactions

1. Magnesium Hydroxide + Nitric Acid
1. Balanced total equation: Mg(OH)₂ (aq) +2 HNO₃(aq)-> 2 H₂O +Mg(NO₃)₂ (aq)
2. Total Ionic Equation: Mg²⁺ + 2 OH^1- + 2 H¹⁺ + 2NO₃^1- - > 2H₂O + Mg²⁺ + 2 NO₃^1-

3. Net Ionic Equation 2 OH^1- + 2 H¹⁺ -> 2H₂O
2. Sulfuric acid and lithium hydroxide
1. Total equation: H₂SO₄ (aq) + 2 LiOH (aq) -> 2 H₂O + Li₂SO₄ (aq)

2. Ionic Equation: 2 H¹⁺ (aq) + SO₄^2- (aq) + 2 LI¹⁺ (aq) + 2 OH^1- -> 2 H₂O + SO₄^2- (aq) + 2 Li¹⁺ (aq)

3. Net ionic equation 2 H¹⁺ (aq) + 2 OH^1- -> 2 H₂O
3. Acetic acid and iron (III) hydroxide
1. Total equation: 3 CH₃COOH (aq) + Fe(OH)₃ (s) -> 3 H₂O + Fe(CH₃COO)₃ (aq)

2. Ionic Equation: 3 CH₃COO^1- + 3H¹⁺ (aq) + Fe³⁺(aq) + 3 OH^1- (aq) ->
   3 H₂O + Fe³⁺ (aq) + 3 CH₃COO^1- (aq)

3. Net ionic equation: 3H¹⁺ (aq) + 3 OH^1- (aq) -> 3 H₂O
4. Ammonia (NH₃) and water( Internet)
   NH₃ + H₂O -> NH₄¹⁺ (aq)+ OH^1-(aq)

5. hydrochloric acid and ammonia produces ammoinum and chloride
   HCl (aq) + NH₃(aq) - > NH₄¹⁺ (aq) + Cl^1-(aq)

6. hydrochloric acid and sodium hydroxide produces sodium chloride and water; no indicator
   HCl(aq) + NaOH(aq)-:gt; H₂O + NaCl(aq)

Please send any comments, corrections, or suggestions to svanbram@science.widener.edu.

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