The PK_a of HCl Is -7

question 32

Multiple Choice

The pK_a of HCl is -7. What is the value of the equilibrium constant, K_eq, for the following equilibrium? [The concentration of water in a dilute aqueous solution is 55 M]

• A) 1.8 * 10⁵
• B) 385
• C) 1.8 * 10^-5
• D) -1.8 * 10⁵

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Definitions:

Absolute Zero

The lowest possible temperature where nothing could be colder and no heat energy remains in a substance, equivalent to -273.15°C or zero kelvin.

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A standard score is a statistical measure that indicates how many standard deviations an entity is from the mean of the population.

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A standardized test widely used for college admissions in the United States, assessing reading, writing, and math skills.