Basic weighing and measuring in a laboratory includes the following:
- Using appropriate equipment (e.g., scales, balances, graduated cylinders, pipettes) to accurately measure materials
- Explaining the concepts of molarity and molality and solution concentration
- Using tables or formulas to convert between metric and U.S. Customary measuring systems
Process/Skill Questions:
- How does one measure a small amount of a powdered material?
- Why is it important to measure accurately when mixing solutions?
- Why should a laboratory worker record his/her measurements and label mixtures?
- What could happen if part of a laboratory worker's measurements were in the U.S. Customary system and part of them were metric? Why is it important for measurements to be consistent?