You Have 500

question 86

Multiple Choice

You have 500.0 mL of a buffer solution containing 0.30 M acetic acid (CH₃COOH) and 0.20 M sodium acetate (CH₃COONa) . What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution [K_a = 1.8 * 10^-5]

• A) 4.65
• B) 4.71
• C) 4.56
• D) 4.84
• E) 5.07

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Definitions:

Spinal Cord

A long, thin, tubular structure made up of nervous tissue, which extends from the brainstem down the back, transmitting neural signals between the brain and the rest of the body.

Knee Jerk Reflex

A quick involuntary response involving muscle contraction, triggered by a tap on the tendon below the knee cap.

Spinothalamic Tract

A sensory pathway in the spinal cord and brain that carries information about pain and temperature to the brain.

Axons

The long, threadlike part of a nerve cell along which impulses are conducted from the cell body to other cells.