Mastering Chemical Math

Stoichiometry lets chemists predict the amounts of substances consumed and produced in reactions. On the GRE, you'll balance equations, convert between grams and moles, and calculate yields.

Core Concepts

• Law of Conservation of Mass: Matter cannot be created or destroyed in a chemical reaction.
• Mole concept: One mole equals \(6.022 \times 10^{23}\) particles.
• Limiting reagent: The reactant that runs out first, limiting the amount of product.

Quick Tips

• Always balance equations before solving.
• Use dimensional analysis for unit conversions.

Relevance in the Real World

Stoichiometry is crucial in industries like pharmaceuticals, where precise amounts of reactants ensure product quality and safety.