Final answer:
To determine the concentration of a NaOH solution, use dimensional analysis to convert given volume and concentration to moles, then calculate molarity. When mixing solutions of different concentrations and volumes, apply the dilution formula. For pH calculations, convert mass to moles, establish NaOH molarity and calculate [OH-] and [H+].
Step-by-step explanation:
The question asks to determine the approximate concentration of a NaOH solution using volume titration data. The process includes using dimensional analysis to convert concentration to moles with a given volume in liters. Then one would calculate the molarity of the analyte. For example, with a concentration of NaOH at 0.1234 mol/L and a volume of 1.00 liter, the total moles of NaOH would be 0.1234 moles. Furthermore, when mixing different molarities and volumes of NaOH, as in the provided example, one must apply the dilution formula McVc = MdVd to find the final molarity. This involves multiplying the concentration (M) and volume (V) for the concentrated and diluted states, respectively.
To determine the pH of the solution, you first convert the mass of NaOH to moles, then calculate the molarity. Since NaOH is a strong base, the hydroxide ion [OH-] concentration will be equal to the NaOH concentration. Using the water dissociation constant (Kw), the [H+] can be calculated and subsequently, the pH of the solution.