3. A is a laboratory method used to determine the
concentration of an acid or a in solution by performing a reaction with a standard solution. 4. At the of the titration, the indicator changes color, which
indicates neutralization. Once neutralized, moles of and moles of are equal. 5. In a titration of HCl with NaOH, 100.0 mL of the base was required to
neutralize 20.0 mL of 5.0 M HCl. What is the molarity of the NaOH? (Be sure to write the neutralization reaction.)