Evaluate the Expression Without Using a Calculator

question 5

Multiple Choice

Evaluate the expression without using a calculator.
-The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by pH = -log x where x represents the concentration of the hydrogen ions in the
Solution in moles per liter. Find the pH if the hydrogen ion concentration is 5 × 10-12.

• A) 11.7
• B) 11.3
• C) 12.7
• D) 12.3

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Definitions:

Job Order

A custom or production order that specifies the details for manufacturing a certain product or products for a customer.

Process Cost

The cost associated with a production process, allocated to products based on the process they go through rather than being directly traced to the product itself.

Conversion Costs

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

Direct Labor

The labor costs directly associated with the manufacture of specific goods or services, which can be easily traced to a product.