Module 6: Quantitative Chemistry - The Language of Chemical Measurement
Quantitative chemistry focuses on measuring and quantifying substances in chemical reactions, with the mole serving as a fundamental unit for this purpose. By bridging the microscopic scale of atoms and molecules with measurable quantities, chemists employ molar mass to link mass to moles and the number of particles. Stoichiometry provides a framework for calculating the relationships between reactants and products in chemical reactions, utilizing balanced equations to derive mole and mass ratios essential for accurate chemical accounting.
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What we have learnt
- The mole is a key unit in quantitative chemistry, representing 6.022×10^23 particles.
- Molar mass relates the mass of a substance to the amount in moles, enabling conversions between mass and number of particles.
- Stoichiometry allows for the quantitative analysis of reactants and products in chemical reactions using balanced equations.
Key Concepts
- -- Mole
- The SI unit for the amount of substance, equal to 6.022×10^23 particles.
- -- Molar mass
- The mass of one mole of a substance, expressed in grams per mole (g/mol).
- -- Stoichiometry
- The study of the quantitative relationships between reactants and products in a chemical reaction.
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