Final answer:
The responsibility for conducting a chemical inventory lies with the employer. They must provide a safe workplace and inform workers about chemical hazards.
Step-by-step explanation:
The responsibility for conducting a chemical inventory that lists every chemical used or stored at a workplace lies with the employer. It is the duty of the employer to maintain a safe workplace and comply with OSHA safety and health standards. They must inform workers about chemical hazards through training, labels, alarms, and other methods. Employers should also provide safety data sheets for chemicals and ensure proper disposal of chemicals.