Chapter 11: Q35P (page 261)
Prepare a second derivative graph to find the end point from the following titration data.
Short Answer
The graph is shown below
Chapter 11: Q35P (page 261)
Prepare a second derivative graph to find the end point from the following titration data.
The graph is shown below
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Get started for freeWhenof aqueouswere added toof cyclohexylaminoethanesulfonic acid structure in Table dissolved in of water, the pH was . Calculate the molarity of the
Why does an acid-base titration curve (pH versus volume of titrant) have an abrupt change at the equivalence point?
Titration on Diprotic Systems
. A solution containing 0.100M glutamic acid (the molecule with no net charge) was titrated to its first equivalence point with0.0250MRbOH.
(a) Draw the structures of reactants and products.
(b) Calculate the at the first equivalence point.
The balance says that you have weighed out 1.023 g of tris to
standardize a solution of HCl. Use the buoyancy correction in Section 2-3 and the density in Table 11-4 to determine how many grams you have really weighed out. The volume of HCl required to react with the tris was 28.37 mL. Does the buoyancy correction introduce a random or a systematic error into the calculated molarity of HCl? What is the magnitude of the error expressed as a percentage? Is the calculated molarity of HCl higher or lower than the true molarity?
Question:Titrating weak acid with weak base.
(a) Prepare a family of graphs for the titration of 50.0 mL of 0.020 0 M HA (pKa = 4.00) with 0.100 M B (pKb = 3.00, 6.00, and 9.00).
(b) Write the acid-base reaction that occurs when acetic acid and sodium benzoate (the salt of benzoic acid) are mixed, and find the equilibrium constant for the reaction. Find the pH of a solution prepared by mixing 212 mL of 0.200 M acetic acid with 325 mL of 0.050 0 M sodium benzoate.
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