What Is the OH^- Concentration of an Aqueous Solution with a PH

question 21

Multiple Choice

What is the OH^- concentration of an aqueous solution with a pH of 9.83? (K_w = 1.01 × 10^-14)

• A) 1.3 × 10^-10 M
• B) 6.8 × 10^-5 M
• C) 6.8 × 10^-1 M
• D) 1.5 × 10^-2 M
• E) 7.4 × 10⁹ M

---

Definitions:

Safe Sex

Sexual activities that are practiced to reduce the risk of transmitting or acquiring sexually transmitted infections and reducing unwanted pregnancies.

High School

An educational institution for teenagers that serves as the secondary level of schooling, typically including grades 9 through 12.

Pregnancy

A biological condition where a woman carries and develops one or more offspring inside her womb.

Protective Factors

Events or circumstances that help to offset, or buffer, risk factors. Anything that lessens the likelihood of disease. For example, exercise is thought to be a protective factor for cardiovascular disease.