A 455 L Sample of Water Contains 0

question 96

Multiple Choice

A 4.55 L sample of water contains 0.115 g of sodium ions. Determine the concentration of sodium ions in ppm if the density of the solution is 1.00 g mL^-1.

• A) 52.3 ppm
• B) 13.2 ppm
• C) 12.7 ppm
• D) 25.3 ppm
• E) 36.5 ppm

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Definitions:

Labor Rate Variance

The difference between the actual hourly wage paid to workers and the expected wage, multiplied by the actual hours worked.

Labor Efficiency Variance

The difference between the actual labor hours taken to produce a good or service and the standard labor hours expected, multiplied by the labor rate.

Direct Labor

Labor costs directly associated with the production of goods or services, including wages for workers who physically produce a product.

Standard Costs

Preset costs for delivering a product or service under normal conditions, used as benchmarks to measure actual performance.