A 25.0 ml sample of 0.105 M HCl was titrated with 31.5 ml of NaOH.What is the concentration of the NaOH?

Name: A 25.0 ml sample of 0.105 M HCl was titrated with 31.5 ml of NaOH.What is the concentration of the NaOH?
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Question

Quizplus · Accepted Answer

The moles of HCl are 0.025 L * 0.105 M = 0.002625 mol. Since HCl and NaOH react in a 1:1 ratio, moles of NaOH = moles of HCl = 0.002625 mol. The concentration of NaOH is 0.002625 mol / 0.0315 L = 0.0833 M.

A 250 Ml Sample of 0