Detailed Breakdown: Stoichiometry
The Mole Mapping and Stoichiometric Ratios: The mole is the 'bridge' between atoms and mass ($6.02 \times 10^{23}$ particles per mole). Chemical equations tell us the molar ratios of reactants and products, allowing us to predict exactly how much of a chemical is needed or produced.
Limiting Reactant and Theoretical Yield: Reactions rarely proceed under perfect conditions. The limiting reactant is the one that is completely used up first, stopping the reaction. Percentage yield ($\text{Actual/Theoretical} \times 100$) measures the efficiency of a chemical processes.
Gas Behavior: The Ideal Gas Law: The equation $PV = nRT$ describes how pressure, volume, and temperature relate to the amount of gas. At Standard Temperature and Pressure (STP), one mole of any ideal gas occupies $22.7 \text{ dm}^3$.