Answer: The concentration of the hydrochloric acid is 0.145 M.
Explanation: [tex]HCl+NaOH\rightarrow NaOH+H_2O[/tex]
According to given balanced equation, 1mole of HCL require 1 mole of NaOH.
Using Molarity equation:
[tex]M_1V_1=M_2V_2[/tex]
[tex]M_1[/tex] = Molarity of base= 0.25 M
[tex]V_1[/tex] = volume of base= 14.50 ml
[tex]M_2[/tex] = Molarity of acid = ? M
[tex]V_2[/tex] = volume of acid = 25 ml
[tex]0.25\times 14.50=M_2\times 25[/tex]
[tex]M_2=0.145M[/tex]
