stoichiometry for jamb chemistry 2part

Stoichiometry is the branch of chemistry that deals with the quantitative relationship between reactants and products in a chemical reaction. It involves calculations based on chemical equations, mole ratios, masses, volumes and concentrations of substances. Stoichiometry is an important topic in JAMB Chemistry because it helps students solve numerical problems involving chemical reactions. Learning Objectives At the end of this lesson, students should be able to: Define stoichiometry. Explain the mole concept. Balance chemical equations. Calculate the number of moles, mass and volume of substances. Solve stoichiometric problems involving chemical reactions. Key Concepts Mole: The amount of substance containing (6.02 \times 10^{23}) particles. Avogadro's constant: (6.02 \times 10^{23}) particles per mole. Molar mass: The mass of one mole of a substance, expressed in g/mol. Molar volume: One mole of a gas occupies 22.4 dm³ at STP (273 K and 1 atm). Mole ratio: The ratio of coefficients of substances in a balanced chemical equation.