Question #ba5d6

1 Answer
sans
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

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