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Calculations for a Weak Acid-Strong Base
Chapter , Problem 1PE(choose chapter or problem)
If you think carefully about what happens during the course of a weak acid-strong base titration, you can learn some very interesting things. For example, let's look back at Figure and pretend you did not know that acetic acid was the acid being titrated. You can figure out the \(p K_{a}\) of a weak acid just by thinking about the definition of \(K_{a}\) and looking at the right place on the titration curve! Which of the following choices is the best way to do this?
(a) At the equivalence point, \(p H=p K\) (b) Halfway to the equivalence point,
(c) Before any base is added, \(p H=p K\) (d) At the top of the graph with excess base added, \(p H=p K\)
Equation transcription:
Text transcription:
p K_{a}
K_{a}
p H=p K
Questions & Answers
QUESTION:
If you think carefully about what happens during the course of a weak acid-strong base titration, you can learn some very interesting things. For example, let's look back at Figure and pretend you did not know that acetic acid was the acid being titrated. You can figure out the \(p K_{a}\) of a weak acid just by thinking about the definition of \(K_{a}\) and looking at the right place on the titration curve! Which of the following choices is the best way to do this?
(a) At the equivalence point, \(p H=p K\) (b) Halfway to the equivalence point,
(c) Before any base is added, \(p H=p K\) (d) At the top of the graph with excess base added, \(p H=p K\)
Equation transcription:
Text transcription:
p K_{a}
K_{a}
p H=p K
ANSWER:Step 1 of 2
The Bronsted-Lowery definition states that an acid is a proton donor while the base is a proton acceptor.
The electrons are comparable to the protons in the acid-base reaction. Electrons are transferred in a redox reaction, but protons are transferred in an acid-base reaction.
A strong base would be equivalent to an oxidising agent.Oxidation always occurs in combination with reduction in a redox reaction. As a result, when the acid-base reaction occurs. The Bronsted-Lowery acid is always one species, while the Bronsted-Lowery base is always the other. Also, And have two acid base conjugate pairs.