To 100 L of a 0

question 45

Multiple Choice

To 1.00 L of a 0.100 M aqueous solution of benzoic acid (C₆H₅COOH) is added 1.00 mL of 12.0 M HCl. What is the percentage ionization of the benzoic acid in the resulting solution [K_a(C₆H₅COOH) = 6.5 * 10^-5]

• A) 3.3%
• B) 12%
• C) 1.3%
• D) 0.52%
• E) 0.065%

---

Definitions:

World Health Organization

A specialized agency of the United Nations responsible for international public health.

Canadian Psychological Association

A professional organization that represents psychologists throughout Canada, aimed at improving the health and welfare of all Canadians, advancing the science, practice, and education of psychology.

Concurrent Validity

The ability of a diagnostic category to estimate an individual’s present standing on factors related to the disorder but not themselves part of the diagnostic criteria. One of the major criticisms of the DSM is that it sheds little light on the non-symptom attributes of people with a given diagnosis.

Diagnostic Category

A class or division in a system of classification, particularly in medical and psychological contexts, that denotes a specific condition or disorder.