Since PK_a = -Log K_a, Which of the Following Is

question 15

Multiple Choice

Since pK_a = -log K_a, which of the following is a correct statement?

• A)acetic acid (pK_a = 4.7)is stronger than lactic acid, (pK_a = 3.9)
• B)lactic acid, (pK_a = 3.9)is weaker than all forms of phosphoric acid, (pK_a = 2.1, 6.9 and 12.4)
• C)since the pK_a for conversion of the ammonium ion to ammonia is 9.25, ammonia is a weaker base then the acetate ion
• D)for carbonic acid with pK_a values of 6.3 and 10.3, the bicarbonate ion is a stronger base than the carbonate ion
• E)none of the above

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Definitions:

Outcome of Delivery

A term referring to the result of a childbirth, including the health status of both mother and child immediately following birth.

Delivery Code

Used in logistics and supply chain management, it refers to a sequence of numbers or letters tracking the delivery of a package.

Outcome

The result or effect of an action, situation, or event, typically in the context of healthcare or research.

Gravida

An alphanumeric (G1, G2, G3, etc.) that indicates how many times a woman has been pregnant in her life.