2OH-(aq)+ 2H+(aq) 2H2O(l)
Sr2+(aq) + 2OH-(aq) + 2H+(aq) + 2ClO4-(aq)
2H2O(l) + Sr2+(aq) + 2ClO4-(aq)
Ba2+(aq) + 2OH-(aq) + 2H+(aq) + SO42-(aq)
2H2O(l) + Ba2+(aq) + SO42-(aq)
Sample Problem 4.4
Writing Ionic Equations for Acid-Base Reactions
PROBLEM:
Write balanced molecular, total ionic, and net ionic equations for the following two acid-base reactions and identify the spectator ions.
(a) strontium hydroxide(aq) + perchloric acid(aq)
(b) barium hydroxide(aq) + sulfuric acid(aq)
Reactants are strong acids and bases and are thus completely ionized in water.
PLAN:
Products are:
(a) Sr(OH)2(aq) + 2HClO4(aq) 2H2O(l) + Sr(ClO4)2(aq)
SOLUTION:
(b) Ba(OH)2(aq) + H2SO4(aq) 2H2O(l) + BaSO4(aq)
2OH-(aq)+ 2H+(aq) 2H2O(l)
1. water
2. spectator ions
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