The Acid-Dissociation Constants of Phosphoric Acid (H₃PO₄)are = 7

question 106

Multiple Choice

The acid-dissociation constants of phosphoric acid (H₃PO₄) are = 7.5 × 10^-3, and K_a3 = 4.2 × 10^-13 at 25.0 °C.What is the pH of a 2.5 M aqueous solution of phosphoric acid?

• A)1.82
• B)0.40
• C)2.51
• D)0.86
• E)0.13

---

Definitions:

Interests

Activities, subjects, or fields that attract attention and engagement from individuals or groups.

Confrontation and Problem Solving

Addressing and engaging in direct discussions or actions to resolve disputes, challenges, or issues.

Direct Reports

Employees who report directly to a manager or supervisor.

Conflict

Refers to a situation where there is a clash of interests, values, actions, views or directions between individuals or groups.