Final answer:
The volume of calcium hydroxide solution needed to neutralize a given mass of an acidic solution cannot be determined without knowing the molar mass of the acid in the solution. The stoichiometry of the reaction between calcium hydroxide and the acid would then be used along with the molarity of the calcium hydroxide to find the required volume.
Step-by-step explanation:
To determine the volume of calcium hydroxide solution needed to neutralize an acidic solution, you have to use the stoichiometry of the neutralization reaction between calcium hydroxide (a strong base) and an acid. Since the exact acid in the solution was not specified, we'll assume it's hydrochloric acid (HCl), a common strong acid used in titrations. The balanced equation for the reaction is:
Ca(OH)2 + 2HCl → CaCl2 + 2H2O
One mole of calcium hydroxide reacts with two moles of hydrochloric acid. To find the required volume of calcium hydroxide, the molar mass of the acid would be needed, which is not provided in the question. Therefore, more information is required to answer this question with precision. If the molar mass of the acid was known, you would first calculate the moles of acid present in 1.2g and then use the stoichiometry of the reaction and the molarity of the calcium hydroxide solution to find the required volume.