Which of the Following Acids (Listed with K_a Values)and Their

question 90

Multiple Choice

Which of the following acids (listed with K_a values) and their conjugate base would form a buffer with a pH of 2.34?

• A)HC₇H₅O₂,K_a = 6.5 × 10^-5
• B)HF,K_a = 3.5 × 10^-4
• C)HClO,K_a = 2.9 × 10^-8
• D)HCN,K_a = 4.9 × 10^-10
• E)HClO₂,K_a = 1.1 × 10^-2

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Definitions:

Abdomen

Belly, between the thorax and the pelvis.

Chronic Diarrhea

is a condition characterized by loose or watery stools that lasts for at least four weeks.

Large Intestine

The large intestine is the final section of the gastrointestinal tract that absorbs water and electrolytes, forming and excreting feces.

Enteric Neurons

The neurons of the enteric nervous system that govern the function of the gastrointestinal tract.