What Is the PH of a Buffer Composed of 0

question 31

Multiple Choice

What is the pH of a buffer composed of 0.35 M H₂PO₄^-(aq) and 0.65 M HPO₄^2-(aq) ? (K_a of H₂PO₄^- is 6.2 × 10^-8)

• A) 6.94
• B) 7.21
• C) 7.48
• D) 7.73
• E) 9.06

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Definitions:

Summary Journal Entry

A consolidated record that summarizes multiple transactions into a single entry within the accounting records.

Accounts Receivable

Money owed to a company by its customers for goods or services that have been delivered or used but not yet paid for.

Sales Returns

Transactions where customers return previously purchased merchandise, leading to a reduction in sales revenue.

Receivable from Factor

Funds to be received from a factor, a financial intermediary that purchases receivables from a company, providing it with immediate cash.