Question
A 25.0 mL HCl sample is neutralized by 20.0 mL of 0.50 M NaOH in a 1:1 reaction. What is HCl molarity?
Select an option. Your answer will be checked instantly.
Correct Answer: A. 0.40 M
Explanation:
Moles NaOH=0.0200×0.50=0.0100 mol.
The HCl concentration is 0.0100/0.0250=0.40 M.
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