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Put these actions in a good order for converting any compound unit (like m/s or g/mL) using factor-label so you catch common mistakes early.

  • Choose conversion factors that have the old unit and the new unit in a ratio (so cancellation is possible).

  • Decide what unit you want to end with (target units) and write it down.

  • Do a magnitude sanity check: should the number be larger or smaller given the size of the units?

  • Write the full chain with parentheses and cancel units symbolically before calculating.

Course
General Chemistry Foundations: Quantitative Concepts & Problem S
10 units51 lessons
Topics
Chemistry (General Chemistry)Physical Chemistry (foundations: thermochemistry/thermodynamics, equilibrium concepts)Chemical Education / Quantitative Reasoning (measurement, units, sig figs, problem-solving methods)
About this course

This course builds a quantitative foundation for general chemistry through measurement, units, dimensional analysis, and significant figures, emphasizing reliable multi-step calculation setup. Core atomic theory is developed from subatomic structure through electron configurations and periodic trends explained by effective nuclear charge. Chemical bonding and molecular structure are treated via Lewis structures, formal charge (intro), resonance (intro), VSEPR, polarity, and intermolecular forces linked to macroscopic properties. Reaction chemistry centers on balancing equations, stoichiometry, limiting reactants, and yields, then extends to gases, phase behavior, solutions and molarity-based calculations, introductory equilibrium and acid–base concepts, and thermochemistry/intro thermodynamics using calorimetry and enthalpy.