To accurately measure and prepare precise concentrations of a drug solution for their experiments, the scientists will primarily need:
- A digital balance: This tool is essential for measuring the mass of the drug accurately so that precise concentrations can be prepared.
While the other tools could serve a purpose in different aspects of the experiment (e.g., a water bath for maintaining temperature, a thermometer for monitoring temperature, and a data collection probe for collecting data during the experiment), the digital balance is the most critical for preparing the drug solution itself.