Respuesta :
The complete sentences are :
- Add a few drops of Indicator to a determined volume of the acetic acid solution.
- In a buret, add moles of NaOH solution with known molarity. As soon as one drop of NaOH is added, the acetic acid solution will change colour.
- Calculate the volume that must be added to reach the endpoint using the volume and molarity of the NaOH solution. The moles of acetic acid in the sample are equal to this.
- Then, using the calculated moles of NaOH and the initial known amount of NaOH, determine the molarity of the acetic acid solution.
What is Molarity?
- A chemical specie's concentration in a solution, specifically the amount of a solute per unit volume of solution, is measured by its molar concentration.
- The number of moles per litre, denoted by the unit symbol mol/L or mol/[tex]dm^{3}[/tex] in SI units, is the most often used unit denoting molarity in chemistry.
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