You Wish to Prepare a Buffer Containing CH₃COOH with a PH

question 53

Multiple Choice

You wish to prepare a buffer containing CH₃COOH with a pH of 4.24. If the pK_a of acetic acid is 4.74, what ratio of [CH₃COO⁻]/[CH₃COOH] must you use?

• A) 0.10
• B) 0.50
• C) 0.32
• D) 2.0
• E) 2.8

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Definitions:

Cost of Goods Sold

The direct costs attributable to the production of the goods sold in a company, including both materials and labor costs.

Absorption Costing Income Statement

An income statement where all manufacturing costs, both variable and fixed, are treated as product costs, with non-manufacturing costs treated as period costs.

Variable and Fixed Costs

Variable costs change based on production levels, while fixed costs remain constant regardless of production volume.

Fixed Factory Overhead Costs

Expenses related to the operation of a manufacturing facility that remain constant regardless of the production volume.