Final answer:
The concentration of HCl can be calculated using the titration method with NaOH. The balanced chemical equation for HCl and NaOH shows a 1:1 mole ratio. Using the titration data and the formula M1V1 = M2V2, the concentration of HCl solution is determined to be 0.1170 M.
Step-by-step explanation:
The student's question involves the concept of titration, which is a common laboratory method of quantitative chemical analysis used to determine the concentration of a known reactant. In this instance, the reaction involves a titration of an HCl solution with a NaOH solution. The balanced chemical equation for the reaction is: HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l).
The concentration of the HCl solution can be calculated using the volume of NaOH needed to reach the equivalence point and the concentration of the NaOH solution. According to the chemical reaction, the mole ratio of HCl to NaOH is 1:1. From the information provided and the provided examples, we can calculate the molarity (M) of the unknown HCl solution by using the formula:
M1V1 = M2V2
where M1 is the molarity of HCl, V1 is the volume of HCl, M2 is the molarity of NaOH, and V2 is the volume of NaOH. Using the given values:
M1 = (0.15M × 0.0195L) / 0.0250L
M1 = 0.1170 M
Therefore, the concentration of the HCl solution is 0.1170 M.