What Is the PH of a Buffer Solution Made by Mixing

question 103

Multiple Choice

What is the pH of a buffer solution made by mixing 50.0 mL of 0.100 M potassium hydrogen phthalate with 13.6 mL of 0.100 M NaOH and diluting the mixture to 100.0 mL with water? The K_a2 for hydrogen phthalate is 3.1 × 10^-6.

• A)3.25
• B)5.08
• C)5.51
• D)5.94

---

Definitions:

Check Register

A record maintained by account holders to track checks written, deposits made, and the current balance of a checking account.

Cash Balance

The amount of cash that a company or an individual has on hand at any given time.

Deposits

Funds placed into an account at a financial institution for safekeeping.

Adjusted Cash Balance

The cash balance reported on a company's financial statements, modified for checks that have not yet cleared or deposits in transit.