Which one of the following basic solutions will not neutralize 25.0 mL of a 1.0 M sulfuric acid solution?
A) 100.0 mL of 0.50 M NaOH
B) 25.0 mL of 1.0 M NaOH
C) 50.0 mL of 1.0 M NaOH
D) 25.0 mL of 2.0 M KOH
E) All of these will neutralize 25.0 mL of a 1.0 M sulfuric acid solution.

Question

Quizplus · Accepted Answer

Sulfuric acid (H2SO4) is a diprotic acid, meaning it can donate two protons (H+ ions) per molecule. Therefore, 25.0 mL of 1.0 M H2SO4 contains 0.050 moles of H+ ions. To neutralize this, 0.050 moles of OH- ions are needed. 25.0 mL of 1.0 M NaOH provides only 0.025 moles of OH- ions, which is insufficient for complete neutralization.

Which One of the Following Basic Solutions Will Not Neutralize