What volume of 0.500 M HCl is required if 25.0 mL of 0.400 M NaOH is added to it in order to achieve complete titration?

Name: What volume of 0.500 M HCl is required if 25.0 mL of 0.400 M NaOH is added to it in order to achieve complete titration?
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Quizplus · Accepted Answer

The reaction between HCl and NaOH is a 1:1 molar reaction. To find the volume of HCl needed, use the equation M1V1 = M2V2. Rearranging for V1 gives V1 = (M2V2) / M1 = (0.400 M * 25.0 mL) / 0.500 M = 20.0 mL.

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