An Impure Sample of Benzoic Acid (C₆H₅COOH,122

question 33

Multiple Choice

An impure sample of benzoic acid (C₆H₅COOH,122.12 g/mol) is titrated with 0.5360 M NaOH.A 1.888-g sample requires 20.50 mL of titrant to reach the endpoint.What is the percent by mass of benzoic acid in the sample? C₆H₅COOH(aq) + NaOH(aq) → NaC₆H₅COO(aq) + H₂O(l)

• A) 0.008998 %
• B) 1.099 %
• C) 100.0 %
• D) 8.998 %
• E) 71.06 %

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Definitions:

Direct Labor Costs

Expenses associated with the wages and benefits of employees who are directly involved in the production of goods or services.

Budgeted Manufacturing Overhead

Budgeted manufacturing overhead is the estimated amount of indirect costs that are expected to be incurred in the manufacturing process during a specified period.

Direct Labor-hour

A measure of the total amount of time worked by employees directly involved in manufacturing a product or providing a service.

Budgeted Manufacturing Overhead

The estimated overhead costs a company anticipates for manufacturing activities within a specified budget period, used for planning and control purposes.