What Is the PH of a Buffer That Consists of 0.20

question 77

Multiple Choice

What is the pH of a buffer that consists of 0.20 M NaH₂PO₄ and 0.40 M Na₂HPO₄? For NaH₂PO₄, K_a = 6.2 × 10⁻⁸

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

---

Definitions:

Mortgage

An agreement made between a debtor and a creditor in which the title to property of the debtor is transferred to the creditor as security for payment of the debt.

Secured

Protected by collateral or a guarantee, often referring to loans or obligations.

Unregistered Mortgage

A mortgage that has not been formally recorded with the relevant legal or government authorities, potentially affecting its enforceability.

Default

The failure to fulfill a legal obligation, such as not making a payment on a loan.