Define the terms relative atomic mass (Ar) and relative molecular mass (Mr).
Calculate the mass of one mole of a species from its formula.
Solve problems involving the relationship between the amount of substance in moles, mass and molar mass.
Distinguish between the terms empirical formula and molecular formula.
Determine the empirical formula from the percentage composition or from other experimental data.
Determine the molecular formula when given both the empirical formula and experimental data.
Khan Academy Lecture: Molecular and Empirical Formulas View website
[ invalid file: molecular formula.mp4 ]
Khan Academy Lecture: Formula from Mass Composition View website
Learning Goals (3 hours)
Khan Academy Lecture: Molecular and Empirical Formulas
View website
[ invalid file: molecular formula.mp4 ]
Khan Academy Lecture: Formula from Mass Composition
View website