A Buffer Was Prepared Such That the PH Was 5

question 35

Multiple Choice

A buffer was prepared such that the pH was 5.20. If the solution contains 0.400 moles of acetic acid (CH₃COOH) per liter, what is the concentration of the acetate ion (CH₃COO ^- ) in this solution?
The p K _a for acetic acid is 4.74.

• A) 0.40 M
• B) 0.14 M
• C) 4.2×10 ^{- 3} M
• D) 6.3×10 ^{- 6} M
• E) 1.1 M

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Definitions:

Finishing Department

The final stage in the manufacturing process where products undergo finishing touches before being deemed complete.

Conversion Costs

The costs incurred to convert raw materials into finished products, including direct labor and manufacturing overhead.

Direct Labor

Workers or employees that are directly involved in the production of goods or services.

Factory Overhead

Costs incurred during the manufacturing process that are not directly tied to the product, including utilities, depreciation of equipment, and salaries of maintenance staff.