\"Pentiometric Analysis experiment\" The first page displays my results (which I
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Question
"Pentiometric Analysis experiment" The first page displays my results (which I was able to graph on my own), but I could use help on the second page... 1. Complete the products for the following reaction (write in molecular form) (weak acid) 2. write the net ionic equation for the reaction in question 1 3. The following represents data related to a previous titration experiment. Graph the data and answer the following questions. 0.152 g Mass of acid Concentration of NaOH solution 0.125 M mL NaOH mL NaOH Buret Buret delivered Reading Reading delivered 10.63 22.35 2.76 2.50 2 og 3.43 23.10 22 11.08 3.94 5.50 11.68 28.59 7.49 9.50 11.50 4.74 13.61 4.92 15.46 514 17.20 1549 19.20 20.21 20.45 20 5.93 20.88 6.38 682 21.45 21.60 22.10Explanation / Answer
(a) volume of NaOH required = 21.2 mL
(b) moles of NaOH added = 0.125 M * 0.0212 L = 2.65*10^-3 moles
(c) moles of acid present = 2.65*10^-3 moles
(d) molar mass of the acid = 0.152gm/2.65*10^-3 moles= 57.36 gm/mol
(e) volume of reach half neutralization point = 10.6 mL
(f) at V = 10.6 mL pH = pKa = 4.6
(g) Ka = 10^-4.6 = 2.51*10^-5
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