Calculate the PH of a Solution Prepared by Dissolving 0

question 31

Multiple Choice

Calculate the pH of a solution prepared by dissolving 0.350 mol of benzoic acid (C₇H₅O₂H) and 0.250 mol of sodium benzoate (NaC₇H₅O₂) in water sufficient to yield 1.00 L of solution. The K_a of benzoic acid is 6.50 × 10^-5.

• A)4.333
• B)4.041
• C)9.959
• D)9.667
• E)5.190

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Definitions:

Afferent Areas

Regions of the brain or nervous system that receive sensory input from the body, transmitting it to the brain for interpretation.

Efferent Areas

Regions of the nervous system responsible for sending signals from the brain to the body to initiate action or movement.

Tomographs

Imaging devices or techniques that create detailed cross-sectional images of the body or structures within it, through processes like X-ray tomography.

Sonographs

Visual representations of sound waves or other acoustic properties, often used in medical imaging and diagnostics.