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In order to determine the concentration of this basic solution (NaOH), you should titrate it with an acid solution of known concentration (HCl)
Titration is also referred to as volumetric analysis or titrimetry and it can be defined as a chemical process in which a solution of known concentration (titrant) is slowly added to a solution of unknown concentration, in order to determine the concentration or quantity of the analyte (solution of an unknown concentration)
In this experiment, a titration would be done to determine the concentration of a basic solution (NaOH) by titrating it with an acid solution of known concentration (HCl) that neutralizes the basic sodium hydroxide (NaOH) solution.
At an equivalence point during a titration, the number of moles of acid are equal to the number of moles of base. Thus, we can derive a mathematical expression (molarity) for the analyte and titrant as follows:
[tex]Molarity = \frac{moles\;of\;soute}{Volume\;in\;liters} \\\\Moles\;of\;soute=M \times V\\\\M_AV_A=M_BV_B[/tex]
In conclusion, you'll have to conduct an experiment to determine the unknown parameters and then substitute them into the formula given above.
Read more on titration here: brainly.com/question/24584140