Question

stoichiometry calculations often involve converting between moles and

Explanation:

Step1: Recall stoichiometry concepts

Stoichiometry uses mole - mass, mole - volume, and mole - particle relationships. Commonly, we convert between moles and mass (grams), volume (at standard conditions for gases), or number of particles (atoms, molecules, ions). Mass is a very common conversion quantity in stoichiometry calculations.

Answer:

mass (or grams)