Glycolic Acid, Which Is a Monoprotic Acid and a Constituent

question 96

Multiple Choice

Glycolic acid, which is a monoprotic acid and a constituent in sugarcane, has a pK_a of 3.9.A 25.0 mL solution of glycolic acid is titrated to the equivalence point with 35.8 mL of 0.020 M sodium hydroxide solution.What is the pH of the resulting solution at the equivalence point?

• A)4.12
• B)9.88
• C)6.01
• D)7.99
• E)Insufficient information is provided to determine the pH.

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Definitions:

Photoreceptors

Specialized cells in the retina of the eye that convert light into electrical signals, enabling vision.

Vertebrates

Animals with a backbone or spinal column, including mammals, birds, reptiles, amphibians, and fish.

Peripheral Vision

The ability to see objects and movement outside of the direct line of vision.

Rod Vision

A type of vision that is sensitive to low levels of light, mediated by rod cells in the retina, allowing for night vision.