To Prepare 100 ML of 0

question 80

Multiple Choice

To prepare 100 mL of 0.4 M HCl solution from a stock solution of 2 M HCl solution one needs to ________.

• A) dilute 20 mL of 2 M HCl solution with 100 mL of HCl solution.
• B) dilute 20 mL of 2 M HCl solution with enough water to make a total volume of 100 mL of solution.
• C) use 500 mL of 2 M HCl solution and boil it down to a final volume of 100 mL of solution.
• D) dilute 80 mL of 2 M HCl solution to a total volume of 100 mL of solution.

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Definitions:

Workers' Compensation Board

A government agency responsible for overseeing and administering workers' compensation laws to provide financial and medical benefits to employees injured at work.

Job Injury

Physical harm or damage that occurs to an employee as a result of performing their work duties.

Safety Officer

A professional responsible for ensuring that workplace environments comply with safety regulations and procedures to protect employees.

Asbestos

A group of naturally occurring fibrous minerals used in construction materials for fireproofing and insulation, but known to be hazardous to health when inhaled.