Calculate the PH of a Buffer Solution That Contains 0

question 110

Multiple Choice

Calculate the pH of a buffer solution that contains 0.25 M benzoic acid (C₆H₅CO₂H) and 0.15M sodium benzoate (C₆H₅COONa) .[K_a = 6.5 × 10^-5 for benzoic acid]

• A)3.97
• B)4.83
• C)4.19
• D)3.40
• E)4.41

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Definitions:

Ability to Meet Obligations

A financial assessment of whether a company or individual has the resources necessary to pay off their debts as they come due.

Return on Assets

A profitability ratio that measures how efficiently a company is using its assets to generate earnings.

Direct Method

In cash flow reporting, a method that shows the specific sources and uses of cash, categorizing cash flows into operating, investing, and financing activities.

Net Cash Provided

The amount of cash generated by a company’s operations after accounting for all cash inflows and outflows.