The following pictures represent solutions at various points in the titration of a weak acid HA with aqueous KOH.Unshaded spheres represent H atoms,black spheres represent oxygen atoms,and shaded spheres represent A - ions.(K + ,H 3 O + initially present,OH - initially present and solvent water molecules have been omitted for clarity).
-Which picture represents the solution after the equivalence point?
A)(1)
B)(2)
C)(3)
D)(4)

Question

The following pictures represent solutions at various points in the titration of a weak acid HA with aqueous KOH.Unshaded spheres represent H atoms,black spheres represent oxygen atoms,and shaded spheres represent A - ions.(K + ,H 3 O + initially present,OH - initially present and solvent water molecules have been omitted for clarity). 
-Which picture represents the solution after the equivalence point?
A)(1) 
B)(2) 
C)(3) 
D)(4)

Quizplus · Accepted Answer

After the equivalence point in a titration, the solution contains excess titrant. The correct picture would show a change in the indicator's color, indicating that the solution's pH has moved beyond the equivalence point. Picture (3) typically represents this scenario, where the color change signifies that the amount of titrant added is more than what was needed to neutralize the analyte, hence indicating the solution after the equivalence point.

The Following Pictures Represent Solutions at Various Points in the Titration