Respuesta :
The acid-base reaction equation is as follows:
HCl + NaOH ---> NaCl + H₂O
stoichiometry of HCl to NaOH is 1:1
number of HCl moles - 0.16 mol/L x 0.200 L = 0.032 mol
number of NaOH moles - 0.091 mol/L x 0.300 L = 0.0273 mol
The limiting reactant is NaOH therefore the number of HCl moles reacted - 0.0273 mol
the excess amount of HCl moles is - 0.032 - 0.0273 = 0.0047 mol
since HCl is a strong acid
total volume - 200 mL + 300 mL = 500 mL
[HCl] = [H⁺]
therefore [H⁺] = 0.0047 mol / 0.500 mL
[H⁺] = 0.0094 mol/L
hydroxide ion concentration - 0.0094 M
What is Titration?
- Titration is a typical laboratory technique for quantitative chemical analysis used to calculate the concentration of a specified analyte.
- It is also referred to as titrimetry and volumetric analysis (a substance to be analyzed).
- A standard solution with a known concentration and volume is prepared as the reagent, also known as the titrant or titrator.
- To ascertain the concentration of the analyte, the titrant reacts with an analyte solution (also known as the titrant). The titration volume is the amount of titrant that interacted with the analyte.
To learn more about Titration, refer to:
https://brainly.com/question/16254547
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