To monitor the rate of hydrolysis of an ester, a student regularly withdraws a 25.0 cm3 aliquot from the reaction mixture and titrates it against a standard sodium hydroxide solution of concentration C mol/dm3C\text{ mol/dm}^3C mol/dm3 to determine the concentration of the acid produced. Assuming a 1:1 1:1\,1:1 reaction stoichiometry between the acid and sodium hydroxide, if the volume of sodium hydroxide required to neutralize the aliquot is V cm3V\text{ cm}^3V cm3, which expression represents the concentration of the acid in the aliquot in mol/dm3\text{mol/dm}^3mol/dm3?