(20 pts) Pictured below is the data collected during a \"large-scale\" titration

Question

(20 pts) Pictured below is the data collected during a "large-scale" titration of 100 mL of 0.100 M acetic acid (CH3CO2H) solution using aqueous sodium hydroxide as titrant (volume in Liters). Identify on the graph (by labeling) the equivalence point for this titration, then in the space provided, calculate the [NaOH] used for this purpose. Report your answer in the box provided with the cornect number of significant figures. Show your work. A correct response without any justification (work) will receive partial credit (2 pts). 14 1 12 10 pH 0.00 5.00 10.00 15.00 20.00 25.00 30.00 Volume NaOH added

Explanation / Answer

titration of acetic acid with NaOH

Equivalence point is center point of vertical line in the middle

moles of acetic acid present = 0.1 M x 0.1 L = 0.01 mol

moles of NaOH needed to reach equivalence point = 0.01 mol

Volume of NaOH used to reach equivalence point = 20 ml

molar concentration of NaOH = 0.01 mol/0.02 L = 0.5 M

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