Acid-Base Reactions

Chemistry                                                                                                            GIA 10-1

Unit: Acids and Bases                                                                           Reading: Chapter 19

Working Mode: Pairs. Follow the instructions below, answer the questions. 

Learning Objectives:  To identify Bronsted-Lowry acids and base and their conjugate pairs.  Predict the products of an acid-base neutralization reaction.

Part 1: In the following reactions identify in the reactants the acid and the base.

a.       2HNO₃ (aq) + Ca(OH)₂(aq) à Ca(NO₃)₂(aq) + 2H₂O(l)

b.      H₃PO₄ (aq) + 3NH₃(aq) à (NH₄)₃PO₄(aq)

c.       NH₄⁺(aq) + H₂O(l) à NH₃(aq) + H₃O⁺(aq)
 

d.      H₂O(l) + S^2-(aq) à OH^-(aq) + HS^-(aq)
 

Part 2:  Identify the conjugate Acid/Base pairs in the following reactions.

a.       CH₃COOH(aq) + H₂O(l) à CH₃COO^-(aq) + H₃O⁺(aq)

b.      NaH₂PO₄ (aq) + NaOH(aq) à Na₂HPO₄(aq) + H₂O(l)

c.       H₂CO₃ (aq) + Na₂CO₃(aq) à 2NaHCO₃(aq)

 

d.      2H₂O(l) à H₃O⁺(aq) + OH^-(aq)

Part 3:  In the following equations apply the coefficients as specific stoichiometric proportions.  Predict the products, write the overall equation according to the given reactant coefficients. Include states.

a.       H₂SO₄(aq) + KOH(aq) à 

H₂SO₄(aq) + 2 KOH(aq) à ( one different product than above)
 

b.      H₂PO₄^- (aq) + NaOH(aq) à

H₂PO₄^- (aq) + 2 NaOH(aq) à (one different product than above)