What Is the PH of a Buffer That Consists of 0.20

question 83

Multiple Choice

What is the pH of a buffer that consists of 0.20 M NaH₂PO₄ and 0.40 M Na₂HPO₄? [K_a(NaH₂PO₄) = 6.2 × 10^-8]

• A) 6.51
• B) 6.91
• C) 7.51
• D) 7.90
• E) 8.13

---

Definitions:

Accountants

Professionals who perform financial functions related to the collection, accuracy, recording, analysis, and presentation of a business, organization, or individual's financial operations.

Cash Flow Method

An accounting technique that tracks the movement of cash in and out of a business, crucial for understanding its liquidity.

Statement of Owners' Equity

A financial document detailing the changes in ownership interest, including investments and withdrawals, over a period.