What Is the PH of a Solution Made by Dissolving

question 79

Multiple Choice

What is the pH of a solution made by dissolving 2.16 g of sodium benzoate (NaC₆H₅CO₂) in a sufficient volume of 0.033 M benzoic acid solution to prepare 500.0 mL of buffer? [Ka for benzoic acid is 6.3 × 10^-5]

• A) 4.16
• B) 4.37
• C) 4.64
• D) 5.77
• E) 6.30

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Definitions:

Derived Demand

Demand for a product or service that results from the demand for another good or service, like the demand for steel driven by demand for cars.

Demand for Labor

The demand for labor reflects the amount of labor employers are willing to hire at a given wage rate, influenced by economic conditions and productivity.

Public Goods

Goods that are non-excludable and non-rivalrous, meaning that no one can be effectively excluded from use and where use by one individual does not reduce availability to others.

Marginal Product

The increase in output that is produced by adding one more unit of a particular input while holding all other inputs constant.