The Following Pictures Represent Solutions That Contain a Weak Acid

question 75

Multiple Choice

The following pictures represent solutions that contain a weak acid HA (pK_a = 5.0) and its potassium salt KA.Unshaded spheres represent H atoms and shaded spheres represent A^- ions.(K⁺,H₃O⁺,OH^-,and solvent H₂O molecules have been omitted for clarity. )
-Which of these solutions are buffers?

• A)(1)and (2)
• B)(1)and (3)
• C)(1), (2)and (3)
• D)All are buffer solutions.

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Compensate

To make up for something undesired by exerting an effort or offering something in return.

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The process of trying to acquire or develop a quality, sentiment, or skill.

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