Question

19) Which of the following is TRUE? A) An effective buffer has a [base]/[acid] ratio in the range of 10 - 100. B) An effective buffer has very small absolute concentrations of acid and conjugate base. C) A buffer can not be destroyed by adding too much strong base. It can only be destroyed by adding too much strong acid. D) A buffer is most resistant to pH change when [acid] = [conjugate base] E) None of the above are true.

          19) Which of the following is TRUE?
A) An effective buffer has a [base]/[acid] ratio in the range of 10 - 100.
B) An effective buffer has very small absolute concentrations of acid and conjugate base.
C) A buffer can not be destroyed by adding too much strong base. It can only be destroyed by adding too much strong acid.
D) A buffer is most resistant to pH change when [acid] = [conjugate base]
E) None of the above are true.

19) Which of the following is TRUE?
A) An effective buffer has a [base]/[acid] ratio in the range of 10 - 100.
B) An effective buffer has very small absolute concentrations of acid and conjugate base.
C) A buffer can not be destroyed by adding too much strong base. It can only be destroyed by adding too much strong acid.
D) A buffer is most resistant to pH change when [acid] = [conjugate base]
E) None of the above are true.

Added by Courtney R.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Dr. Satish Ingale

06/07/2022

Step 1

This is not true. An effective buffer has a [base] / [acid] ratio close to 1:1. B) An effective buffer has very small absolute concentrations of acid and conjugate base. This is also not true. An effective buffer has significant concentrations of both acid and Show more…

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Which of the following is TRUE? A) An effective buffer has a [base]/[acid] ratio in the range of 10 - 100. B) An effective buffer has very small absolute concentrations of acid and conjugate base. C) A buffer can not be destroyed by adding too much strong base. It can only be destroyed by adding too much strong acid. D) A buffer is most resistant to pH change when [acid] = [conjugate base] E) None of the above are true.