You have75.0 mL of a 0.25M solution of a weak base, ethanol amine, HOC2H4NH2, with a kb= 2.8x10^-5. It is to be titrated with 0.50 M HCl. What is the pH of the resulting solutions after the following additions? (a) initial pH (B)after 10.50 mL of HCl have been added (c) 1/2 way to the equivalence point (d) at the equivalence point (E) after 40 mL of HCl has been added (f) what indicator would you choose to signal the endpoint, and WHY?
You have75.0 mL of a 0.25M solution of a weak base, ethanol amine, HOC2H4NH2, with a kb= 2.8x10^-5. It is to be titrated with 0.50 M HCl. What is the pH of the resulting solutions after the following additions? (a) initial pH (B)after 10.50 mL of HCl have been added (c) 1/2 way to the equivalence point (d) at the equivalence point (E) after 40 mL of HCl has been added (f) what indicator would you choose to signal the endpoint, and WHY?
Chapter15: Acid-base Equilibria
Section: Chapter Questions
Problem 8ALQ: You have a solution of the weak acid HA and add some of the salt NaA to it. What are the major...
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You have75.0 mL of a 0.25M solution of a weak base, ethanol
(a) initial pH
(B)after 10.50 mL of HCl have been added
(c) 1/2 way to the equivalence point
(d) at the equivalence point
(E) after 40 mL of HCl has been added
(f) what indicator would you choose to signal the endpoint, and WHY?
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