Chemists may work in different locations, depending on their research.
The most common workplace would be in a laboratory. They can analyze and record their data of the results of an experiment.
Others may work in industrial manufacturing facilities in which they monitor the overall conditions of the operations.
Chemists may be exposed to health hazards if they are not cautious with the chemicals they are handling. One way to eliminate the risk factor would be to wear protective clothing.
They usually maintain a regular amount of hours and work full time. However, if they need to carry out additional experiments or need more time to meet deadlines, they work overtime.
Bureau of Labor Statistics (https://www.bls.gov/ooh/images/2011.jpg)
This is an image in which a chemist is performing an experiment. The scientist is using protective clothing, such as a lab coat, goggles, and gloves, when handling the chemicals.