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18. Aqueous Equilibrium - Part 1 of 3

18. Aqueous Equilibrium - Part 1 of 3

18. Aqueous Equilibrium / Intro to Buffers / Problem 1

Determine the solution with the greatest buffer capacity among the representations of solutions shown below containing one or more of the following components: H₂A, KHA, and K₂A, where H₂A is a weak diprotic acid. Note that K⁺ ions and water were omitted from the representation for clarity.

ANSWERS OPTIONS

A

(i) has the greatest buffer capacity.

B

(ii) has the greatest buffer capacity.

C

(iii) has the greatest buffer capacity.

D

(iv) has the greatest buffer capacity.

E

All of the buffer solutions have equal buffer capacity.

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