Question #ba5d6

1 Answer
Oct 4, 2017

0.29 M

Explanation:

Since the NaOH solution completely reacted ( completely neutralized ) the HCl, this would mean that moles OH^- = H^+.

- Find the number of OH^- moles

0.5M NaOH * 14.5 mL = 7.25 mmol NaOH rarr 7.25 mmol OH^-

- Find the concentration of HCl

OH^- = H^+ = 7.25 mmol

?M HCl = (7.25 mmol) / (25 mL) = 0.29 M