In which field of science is the mole most commonly used as a unit of measurement?

• A. Physics
• B. Biology
• C. Chemistry
• D. Geology

Answer: (C)

Verified step by step guidance

1. Understand that the mole is a fundamental unit used to count particles, such as atoms, molecules, or ions, in a given sample.
2. Recognize that the mole is primarily used in fields that deal with chemical substances and reactions, where quantifying the number of particles is essential.
3. Recall that Physics often deals with forces, energy, and matter at a more macroscopic or fundamental particle level, but does not commonly use the mole as a unit.
4. Note that Biology studies living organisms and may use moles occasionally, but it is not the primary field for this unit.
5. Identify Chemistry as the field that most commonly uses the mole to measure amounts of substances, making it the correct answer.