An Acetic Acid Buffer Containing 0

question 20

Multiple Choice

An acetic acid buffer containing 0.50 M CH₃COOH and 0.50 M CH₃COONa has a pH of 4.74. What will the pH be after 0.0020 mol of HCl has been added to 100.0 mL of the buffer?

• A) 4.77
• B) 4.71
• C) 4.68
• D) 4.62
• E) 1.70.

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Definitions:

Tarsiers

Small, nocturnal primates known for their large eyes and ability to leap between trees; found in Southeast Asia.

Haplorhines

The subdivision within the primate order based on shared genetic characteristics; includes tarsiers, New World monkeys, Old World monkeys, and apes (including humans).

Hominids

A family of primates that includes all modern and extinct Great Apes and humans.

Evolutionary History

The study of the development of life on Earth over millions of years, including the processes that have shaped the diversity of life.