In the Henderson-Hasselbalch Equation, When Will the PH Be Equal

question 108

Multiple Choice

In the Henderson-Hasselbalch equation, when will the pH be equal to the pK_a?

• A) when [A⁻] = 0.5 × [HA]
• B) when [A⁻] = 1 × [HA]
• C) when [HA]= 3 × [A⁻]
• D) when [A⁻] = 2 × [HA]

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Definitions:

Structure

The three-dimensional arrangement of atoms within a molecule, which determines its chemical behavior.

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A thermoplastic polymer made through the polymerization of propylene, used in packaging, textiles, and various types of containers.

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An organic compound formed by the reaction of a carbonate ion with an alcohol, often used as solvents and intermediates in chemical synthesis.

Glass Transition Temperature

The temperature range over which a polymer changes from a hard, glassy state to a soft, rubbery state.