Determine the Volume of O₂ (At STP) Formed When 50

question 46

Multiple Choice

Determine the volume of O₂ (at STP) formed when 50.0 g of KClO₃ decomposes according to the following reaction. The molar mass for KClO₃ is 122.55 g mol^-1. 2KClO₃(s) → 2KCl(s) + 3O₂(g)

• A) 9.14 L
• B) 8.22 L
• C) 12.3 L
• D) 13.9 L
• E) 14.6 L

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Definitions:

Machine-Hours

A measure of production output or activity based on the number of hours machines are operated in the manufacturing process.

Predetermined Overhead Rate

A predetermined overhead rate is the rate used to allocate estimated overhead costs to products or services based on a specific cost driver.

Machine-Hours

The total hours that machinery is operated in the production process, used as a basis for allocating manufacturing overhead.

Predetermined Overhead Rate

A rate calculated before a period begins, based on the estimated overhead costs and expected activity levels, used to apply overhead to products or job costs.