Calculate the Ratio of the Molarities of HPO₄^2- and H₂PO₄^-

question 238

Multiple Choice

Calculate the ratio of the molarities of HPO₄^2- and H₂PO₄^- ions required to achieve buffering at pH = 7.00 .For H₃PO₄,PK_a1 = 2.12,PK_a2 = 7.21,And pK_a3 = 12.68.

• A) 0.81
• B) 1.23
• C) 0.62
• D) 0.21
• E) 1.62

---

Definitions:

Private Practice

The practice of a health care provider or clinic operating independently, offering services to individuals on a fee-for-service basis.

Community Mental Health Centre

A facility that provides mental health services, including therapy and counseling, to people in a local area.

Deinstitutionalization

Refers to the process of reducing the use of large, institutional facilities for people with mental health issues in favor of community-based mental health care services.

Severe Mental Illness

A term referring to a group of psychiatric disorders that significantly interfere with one’s ability to function in daily life.